-
question_answer1)
The change in optical rotation, with time, of freshly prepared solution of sugar is known as [CPMT 1982, 85; BHU 1997]
A)
Rotatory motion done
clear
B)
Inversion done
clear
C)
Specific rotation done
clear
D)
Mutarotation done
clear
View Solution play_arrow
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question_answer2)
Gun-cotton is
A)
Nitrosucrose done
clear
B)
Nitrocellulose done
clear
C)
Nitroglucose done
clear
D)
Nitropicrin done
clear
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question_answer3)
Which of the following monosaccharide is a pentose [CPMT 1982, 87, 89, 93]
A)
Galactose done
clear
B)
Glucose done
clear
C)
Fructose done
clear
D)
Arabinose done
clear
View Solution play_arrow
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question_answer4)
Amide group is present in
A)
Lipids done
clear
B)
Carbohydrates done
clear
C)
Amino acids done
clear
D)
Proteins done
clear
View Solution play_arrow
-
question_answer5)
Which of the following is a carbohydrate
A)
Leucine done
clear
B)
Albumin done
clear
C)
Inulin done
clear
D)
Maltase done
clear
View Solution play_arrow
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question_answer6)
General formula for carbohydrates is
A)
\[{{C}_{n}}{{H}_{2n}}{{O}_{2n+2}}\] done
clear
B)
\[{{C}_{x}}{{({{H}_{2}}O)}_{2x}}\] done
clear
C)
\[{{C}_{x}}{{({{H}_{2}}O)}_{y}}\] done
clear
D)
None of these done
clear
View Solution play_arrow
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question_answer7)
Benedict solution provides [CPMT 1983]
A)
\[A{{g}^{+}}\] done
clear
B)
\[L{{i}^{+}}\] done
clear
C)
\[C{{u}^{+2}}\] done
clear
D)
\[B{{a}^{+2}}\] done
clear
View Solution play_arrow
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question_answer8)
Glucose gives silver mirror with Tollen's reagent. It shows the presence of [MNR 1981; CPMT 1974, 81; MP PMT 1994]
A)
An acidic group done
clear
B)
An alcoholic group done
clear
C)
A ketonic group done
clear
D)
An aldehydic group done
clear
View Solution play_arrow
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question_answer9)
A certain compound gives negative test with ninhydrin and positive test with Benedict's solution. The compound is [NCERT 1978; KCET 2000]
A)
A protein done
clear
B)
A monosaccharide done
clear
C)
A lipid done
clear
D)
An amino acid done
clear
View Solution play_arrow
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question_answer10)
An organic compound answers Molisch's test as well as Benedict's test. But it does not answer Scliwanoff's test. Most probably, it is [KCET 2003]
A)
Sucrose done
clear
B)
Protein done
clear
C)
Fructose done
clear
D)
Maltose done
clear
View Solution play_arrow
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question_answer11)
Glucose when heated with \[C{{H}_{3}}OH\] in presence of dry HCl gas gives \[\alpha \] and \[\beta -\text{methyl}\] glucosides because it contains [CPMT 1982, 85]
A)
An aldehyde group done
clear
B)
A \[-C{{H}_{2}}OH\] group done
clear
C)
A ring structure done
clear
D)
Five hydroxyl groups done
clear
View Solution play_arrow
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question_answer12)
Which one is a disaccharide [CPMT 1981, 83]
A)
Glucose done
clear
B)
Fructose done
clear
C)
Xylose done
clear
D)
Sucrose done
clear
View Solution play_arrow
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question_answer13)
Molecular formula \[{{C}_{6}}{{H}_{12}}{{O}_{6}}\] is of
A)
Glucose done
clear
B)
Fructose done
clear
C)
Both A and B done
clear
D)
None of these done
clear
View Solution play_arrow
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question_answer14)
Hydrolysis of sucrose is called [BHU 1979, 83; Pb. PMT 1999; Pb. CET 2000]
A)
Esterification done
clear
B)
Saponification done
clear
C)
Inversion done
clear
D)
Hydration done
clear
View Solution play_arrow
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question_answer15)
In the 'glycolipids', the two sugars known to occur are glucose and
A)
Fructose done
clear
B)
Lactose done
clear
C)
Galactose done
clear
D)
Sucrose done
clear
View Solution play_arrow
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question_answer16)
The ?epimerisation? involves
A)
Change of configuration done
clear
B)
Addition of one more 'C' done
clear
C)
Substration of a 'C' done
clear
D)
Conversion of \[-CHO\] to \[-C=O\] done
clear
View Solution play_arrow
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question_answer17)
The compound which does not contain an asymmetric carbon atom is
A)
Glycolaldehyde done
clear
B)
Glyceraldehyde done
clear
C)
Glucose done
clear
D)
Galactose done
clear
View Solution play_arrow
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question_answer18)
Which of the following sign indicate that the sugar is actually ?dextrorotatory?
A)
? done
clear
B)
+ done
clear
C)
R ? done
clear
D)
All of these done
clear
View Solution play_arrow
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question_answer19)
The standard compound for determination of configuration in the ?sugar chemistry? is
A)
Glycolaldehyde done
clear
B)
Glyceraldehyde done
clear
C)
Glucose done
clear
D)
Fructose done
clear
View Solution play_arrow
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question_answer20)
Sugars are
A)
Optically active polyhydroxy aldehydes done
clear
B)
Optically active polyhydroxy ketones done
clear
C)
Optically active polyhydroxy aldehydes or ketones done
clear
D)
Polyhydroxy aldehydes or ketones which may or may not be optically active done
clear
View Solution play_arrow
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question_answer21)
Molecular formula of pentahydroxy acid obtained when glucose is oxidised with \[B{{r}_{2}}\] water is
A)
\[{{C}_{6}}{{H}_{12}}{{O}_{7}}\] done
clear
B)
\[{{C}_{6}}{{H}_{12}}{{O}_{8}}\] done
clear
C)
\[{{C}_{6}}{{H}_{12}}{{O}_{6}}\] done
clear
D)
\[{{C}_{6}}{{H}_{10}}{{O}_{6}}\] done
clear
View Solution play_arrow
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question_answer22)
The 'phosphoglycerides' occur in
A)
The brain and the spinal chord done
clear
B)
Nails and hairs done
clear
C)
Oils and fats done
clear
D)
Waxes done
clear
View Solution play_arrow
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question_answer23)
Sucrose is a [CPMT 1983]
A)
Monosaccharide done
clear
B)
Disaccharide done
clear
C)
Trisaccharide done
clear
D)
Polysaccharide done
clear
View Solution play_arrow
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question_answer24)
The commonest disaccharide has the molecular formula [CPMT 1982; Manipal MEE 1995; MP PET 1999; AIIMS 1999]
A)
\[{{C}_{10}}{{H}_{18}}{{O}_{9}}\] done
clear
B)
\[{{C}_{10}}{{H}_{20}}{{O}_{10}}\] done
clear
C)
\[{{C}_{18}}{{H}_{22}}{{O}_{11}}\] done
clear
D)
\[{{C}_{12}}{{H}_{22}}{{O}_{11}}\] done
clear
View Solution play_arrow
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question_answer25)
On complete hydrolysis of starch, we finally get [MNR 1982; DPMT 1979; CBSE PMT 1991; MP PMT 1987; MP PET 1993]
A)
Glucose done
clear
B)
Fructose done
clear
C)
Glucose and fructose done
clear
D)
Sucrose done
clear
View Solution play_arrow
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question_answer26)
Which is monosaccharide
A)
Glucose done
clear
B)
Fructose done
clear
C)
Galactose done
clear
D)
All of these done
clear
View Solution play_arrow
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question_answer27)
Which is polysaccharide
A)
Starch done
clear
B)
Cellulose done
clear
C)
Glycogen done
clear
D)
All of these done
clear
View Solution play_arrow
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question_answer28)
The calorific values of fats, carbohydrates and proteins vary in the order
A)
Fats > Carbohydrates > Proteins done
clear
B)
Fats > Proteins > Carbohydrates done
clear
C)
Carbohydrates > Proteins > Fats done
clear
D)
Proteins > Carbohydrates > Fats done
clear
View Solution play_arrow
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question_answer29)
Gun-cotton is obtained when conc. nitric acid reacts with
A)
Glycerine done
clear
B)
Glycol done
clear
C)
Cellulose done
clear
D)
Starch done
clear
View Solution play_arrow
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question_answer30)
A carbohydrate consists of [NCERT 1971]
A)
C and O done
clear
B)
\[C,\,\,H\] and O done
clear
C)
\[C,\,\,H,\,\,N\] and O done
clear
D)
C and H done
clear
View Solution play_arrow
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question_answer31)
Glucose forms many derivatives. The derivative which will help to prove the furanose structure is [AIIMS 1980; DPMT 1985]
A)
Acetyl done
clear
B)
Benzoyl done
clear
C)
Osazone done
clear
D)
Isopropylidene done
clear
View Solution play_arrow
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question_answer32)
Glucose and fructose form [MP PMT 1986]
A)
Same osazone done
clear
B)
Same acid on oxidation done
clear
C)
Same alcohol when reduced done
clear
D)
Different osazone done
clear
View Solution play_arrow
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question_answer33)
On heating with conc. \[{{H}_{2}}S{{O}_{4}},\]sucrose gives [DPMT 1984]
A)
CO and \[C{{O}_{2}}\] done
clear
B)
CO and \[S{{O}_{2}}\] done
clear
C)
\[CO,\,\,C{{O}_{2}}\] and \[S{{O}_{2}}\] done
clear
D)
None of these done
clear
View Solution play_arrow
-
question_answer34)
The letter ?D? in carbohydrates represents
A)
Its direct synthesis done
clear
B)
Its dextrorotation done
clear
C)
Its mutarotation done
clear
D)
Its configuration done
clear
View Solution play_arrow
-
question_answer35)
Starch can be used as an indicator for the detection of traces of [CPMT 1986]
A)
Glucose in aqueous solution done
clear
B)
Protein in blood done
clear
C)
Iodine in aqueous solution done
clear
D)
Urea in blood done
clear
View Solution play_arrow
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question_answer36)
It is best to carry out reactions with sugars in neutral or acid medium and not in alkaline medium. This is because in alkaline medium sugars undergo one of the following changes [AIIMS 1982]
A)
Racemisation done
clear
B)
Decomposition done
clear
C)
Inversion done
clear
D)
Rearrangement done
clear
View Solution play_arrow
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question_answer37)
Which one of the following compounds is found abundantly in nature [BHU 1983; Manipal MEE 1995; DCE 2004]
A)
Fructose done
clear
B)
Starch done
clear
C)
Glucose done
clear
D)
Cellulose done
clear
View Solution play_arrow
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question_answer38)
The substance that forms the plant cell walls is or Which carbohydrates is an essential constituents of plant cells [KCET 1984; MP PET 1999; CPMT 2002]
A)
Cellulose done
clear
B)
Sucrose done
clear
C)
Vitamins done
clear
D)
Starch done
clear
View Solution play_arrow
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question_answer39)
Sugar can be tested in urine by
A)
Molisch test done
clear
B)
Dunstan's test done
clear
C)
Benedict's test done
clear
D)
Legal's test done
clear
View Solution play_arrow
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question_answer40)
When sucrose is heated with conc. \[HN{{O}_{3}}\] the product is [CPMT 1979]
A)
Sucrose nitrate done
clear
B)
Formic acid done
clear
C)
Oxalic acid done
clear
D)
Citric acid done
clear
View Solution play_arrow
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question_answer41)
Amylopectin is [KCET 2005]
A)
Water soluble done
clear
B)
Water insoluble done
clear
C)
Forms colloidal solution with water done
clear
D)
Both B and C done
clear
View Solution play_arrow
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question_answer42)
Which of the following statements about ribose is incorrect [CPMT 1985]
A)
It is a polyhydroxy compound done
clear
B)
It is an aldehyde sugar done
clear
C)
It has six carbon atoms done
clear
D)
It exhibits optical activity done
clear
View Solution play_arrow
-
question_answer43)
Maltose contains how many oxygen atoms
A)
6 done
clear
B)
10 done
clear
C)
11 done
clear
D)
22 done
clear
View Solution play_arrow
-
question_answer44)
The correct name of ?sucrose' is
A)
\[\alpha -D-\text{glucopyranosyl}-\beta -D-\text{fructofuranoside}\] done
clear
B)
\[\beta -D-\text{glucopyranosyl}-\beta -D-\text{fructofuranoside}\] done
clear
C)
\[\alpha -D-\text{glucopyranosyl}-\alpha -D-\text{fructofuranoside}\] done
clear
D)
\[\beta -D-\text{glucopyranosyl}-\alpha -L-\text{fructofuranoside}\] done
clear
View Solution play_arrow
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question_answer45)
Sucrose is
A)
Laevorotatory done
clear
B)
Dextrorotatory done
clear
C)
Racemic mixture done
clear
D)
Optically inactive done
clear
View Solution play_arrow
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question_answer46)
The hydrolysis of sucrose produces a mixture which is
A)
Laevorotatory done
clear
B)
Dextrorotatory done
clear
C)
Equally both (+) and (?) rotatory done
clear
D)
Optically inactive done
clear
View Solution play_arrow
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question_answer47)
Sucrose is
A)
A reducing sugar done
clear
B)
Not a reducing sugar done
clear
C)
Partial reducing sugar done
clear
D)
Mixed sugar done
clear
View Solution play_arrow
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question_answer48)
Sucrose contains which of the following groups
A)
\[-CHO\] done
clear
B)
\[>C=O\] done
clear
C)
Both A and B done
clear
D)
None of these done
clear
View Solution play_arrow
-
question_answer49)
The fructose molecule in sucrose exists as
A)
Furanose done
clear
B)
Pyranose done
clear
C)
Open chain done
clear
D)
All done
clear
View Solution play_arrow
-
question_answer50)
Which one of the following is laevorotatory [DPMT 1989]
A)
Glucose done
clear
B)
Sucrose done
clear
C)
Fructose done
clear
D)
None of these done
clear
View Solution play_arrow
-
question_answer51)
Chemically 'digestion' is [NCERT 1978]
A)
Hydrolysis done
clear
B)
Change in bacteria done
clear
C)
Hydrogenation done
clear
D)
Dehydrogenation done
clear
View Solution play_arrow
-
question_answer52)
Which one of the following is the reagent used to identify glucose [MP PMT 1993]
A)
Neutral ferric chloride done
clear
B)
Chloroform and alcoholic KOH done
clear
C)
Ammoniacal silver nitrate done
clear
D)
Sodium ethoxide done
clear
View Solution play_arrow
-
question_answer53)
Sucrose on hydrolysis gives [MP PMT 1993; Bihar MEE 1997]
A)
Two molecules of glucose done
clear
B)
Two molecules of fructose done
clear
C)
One molecule each of glucose and fructose done
clear
D)
One molecule each of glucose and mannose done
clear
View Solution play_arrow
-
question_answer54)
Which of the following is a disaccharide [CPMT 1990, 94]
A)
Lactose done
clear
B)
Starch done
clear
C)
Cellulose done
clear
D)
Glucose done
clear
View Solution play_arrow
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question_answer55)
Glucose cannot be classified as [CPMT 1989]
A)
A hexose done
clear
B)
A carbohydrate done
clear
C)
An oligosaccharide done
clear
D)
An aldose done
clear
View Solution play_arrow
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question_answer56)
The reagent which forms crystalline osazone derivative when reacted with glucose, is [CPMT 1990]
A)
Fehling solution done
clear
B)
Phenylhydrazine done
clear
C)
Benedict solution done
clear
D)
Hydroxylamine done
clear
View Solution play_arrow
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question_answer57)
An enzyme which brings about the conversion of starch into maltose is known as [BHU 1979]
A)
Maltase done
clear
B)
Zymase done
clear
C)
Invertase done
clear
D)
Diastase done
clear
View Solution play_arrow
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question_answer58)
Canesugar on hydrolysis gives [MADT Bihar 1984; NCERT 1977; AMU 1985]
A)
Glucose and maltose done
clear
B)
Glucose and lactose done
clear
C)
Glucose and fructose done
clear
D)
Only glucose done
clear
View Solution play_arrow
-
question_answer59)
Glucose is a [CPMT 1984]
A)
Monosaccharide done
clear
B)
Disaccharide done
clear
C)
Trisaccharide done
clear
D)
Polysaccharide done
clear
View Solution play_arrow
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question_answer60)
Which carbohydrate is used in silvering of mirrors [BHU 1973; CPMT 1991]
A)
Sucrose done
clear
B)
Starch done
clear
C)
Glucose done
clear
D)
Fructose done
clear
View Solution play_arrow
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question_answer61)
A carbohydrate that cannot be hydrolysed to simpler forms is called
A)
Disaccharide done
clear
B)
Monosaccharide done
clear
C)
Polysaccharide done
clear
D)
Trisaccharide done
clear
View Solution play_arrow
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question_answer62)
If monosaccharide contains an aldehyde group, it is known as
A)
Epimer done
clear
B)
Osones done
clear
C)
Osazone done
clear
D)
Aldose done
clear
View Solution play_arrow
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question_answer63)
If a monosaccharide contains a ketogroup, it is known as
A)
Ketose done
clear
B)
Osones done
clear
C)
Epimer done
clear
D)
Osazone done
clear
View Solution play_arrow
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question_answer64)
The aqueous solution of a carbohydrate gives dark blue colour with iodine. It is
A)
Glucose done
clear
B)
Fructose done
clear
C)
Sucrose done
clear
D)
Starch done
clear
View Solution play_arrow
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question_answer65)
Which of the following carbohydrates is a disaccharide
A)
Glucose done
clear
B)
Fructose done
clear
C)
Raffinose done
clear
D)
Maltose done
clear
View Solution play_arrow
-
question_answer66)
Optical activity is shown by
A)
Glucose done
clear
B)
Fructose done
clear
C)
Sucrose done
clear
D)
All of these done
clear
View Solution play_arrow
-
question_answer67)
Which is a reducing sugar
A)
Glucose done
clear
B)
Fructose done
clear
C)
Galactose done
clear
D)
All of these done
clear
View Solution play_arrow
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question_answer68)
The ultimate product of oxidation of most of hydrogen and carbon in foodstuffs are [CPMT 1981]
A)
\[{{H}_{2}}O\] alone done
clear
B)
\[C{{O}_{2}}\] alone done
clear
C)
\[{{H}_{2}}O\] and \[C{{O}_{2}}\] done
clear
D)
None of these done
clear
View Solution play_arrow
-
question_answer69)
Osazone formation involves only 2 carbon atoms of glucose because of [MP PMT 1986]
A)
Chelation done
clear
B)
Oxidation done
clear
C)
Reduction done
clear
D)
Hydrolysis done
clear
View Solution play_arrow
-
question_answer70)
Glucose will show mutarotation when solvent is [MP PMT 1986]
A)
Acidic done
clear
B)
Basic done
clear
C)
Neutral done
clear
D)
Amphoteric done
clear
View Solution play_arrow
-
question_answer71)
Glucose contains [CPMT 1982]
A)
One \[-CHO\] group done
clear
B)
Five \[-OH\] groups done
clear
C)
One primary alcoholic group done
clear
D)
Four secondary alcoholic groups done
clear
E)
All are correct done
clear
View Solution play_arrow
-
question_answer72)
Carbohydrates are stored in human body as [MP PMT 1999; Kerala PMT 2004]
A)
Glucose done
clear
B)
Glycogen done
clear
C)
Starch done
clear
D)
Fructose done
clear
View Solution play_arrow
-
question_answer73)
An example of a disaccharide made up of two units of the same monosaccharides is [KCET 1989; MP PET 1996; AFMC 2005]
A)
Sucrose done
clear
B)
Maltose done
clear
C)
Lactose done
clear
D)
None of these done
clear
View Solution play_arrow
-
question_answer74)
The sugar present in fruits is [KCET 1984]
A)
Fructose done
clear
B)
Glucose done
clear
C)
Sucrose done
clear
D)
Galactose done
clear
View Solution play_arrow
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question_answer75)
Carbohydrates are [MADT Bihar 1983]
A)
Hydrates of carbon done
clear
B)
Polyhydroxy aldehydes or ketones done
clear
C)
Polyhydroxy acid compounds done
clear
D)
None of these done
clear
View Solution play_arrow
-
question_answer76)
Glucose and fructose are [Bihar MADT 1982]
A)
Isotopes done
clear
B)
Isotones done
clear
C)
Isomers done
clear
D)
Homologues of each other done
clear
View Solution play_arrow
-
question_answer77)
Hydrolytic conversion of sucrose into glucose and fructose is known as [BHU 1979, 97]
A)
Induction done
clear
B)
Saponification done
clear
C)
Inversion done
clear
D)
Esterification done
clear
View Solution play_arrow
-
question_answer78)
Starch is a polymer of [DPMT 1982; CPMT 1975, 80; MP PMT 1994]
A)
Glucose done
clear
B)
Fructose done
clear
C)
Both A and B done
clear
D)
None of these done
clear
View Solution play_arrow
-
question_answer79)
To become a carbohydrate a compound must contain at least [AFMC 1991]
A)
2 carbons done
clear
B)
3 carbons done
clear
C)
4 carbons done
clear
D)
6 carbons done
clear
View Solution play_arrow
-
question_answer80)
Lactose on hydrolysis gives [KCET 1983]
A)
Two glucose molecules done
clear
B)
Two galactose molecules done
clear
C)
A galactose molecule and a fructose molecule done
clear
D)
A galactose molecule and a glucose molecule done
clear
View Solution play_arrow
-
question_answer81)
An example of non-reducing sugar is [KCET 1988]
A)
Cane sugar done
clear
B)
Fructose done
clear
C)
Lactose done
clear
D)
Cellobiose done
clear
View Solution play_arrow
-
question_answer82)
Cellulose is a polymer of [KCET 1984]
A)
L-fructose done
clear
B)
D-mannose done
clear
C)
D-glucose done
clear
D)
Amylose done
clear
View Solution play_arrow
-
question_answer83)
The intermediate compound formed in the conversion of starch to glucose is [KCET 1984]
A)
Lactose done
clear
B)
Sucrose done
clear
C)
Maltose done
clear
D)
Fructose done
clear
View Solution play_arrow
-
question_answer84)
Invertase brings about the conversion of [KCET 1986]
A)
Starch to glucose done
clear
B)
Sucrose to glucose and fructose done
clear
C)
Maltose to glucose done
clear
D)
Glucose to \[{{C}_{2}}{{H}_{5}}OH\] and \[C{{O}_{2}}\] done
clear
View Solution play_arrow
-
question_answer85)
Which of the following pentoses will be optically active \[\begin{matrix} CHO \\ | \\ HCOH \\ | \\ HOCH \\ | \\ HCOH \\ | \\ C{{H}_{2}}OH \\ I \\ \end{matrix}\] \[\begin{matrix} CHO \\ | \\ HCOH \\ | \\ HCOH \\ | \\ HOCH \\ | \\ C{{H}_{2}}OH \\ II \\ \end{matrix}\] \[\begin{matrix} CHO \\ | \\ HCOH \\ | \\ HCOH \\ | \\ HCOH \\ | \\ C{{H}_{2}}OH \\ III \\ \end{matrix}\] [MP PET 1994]
A)
All done
clear
B)
II and III done
clear
C)
I done
clear
D)
II done
clear
View Solution play_arrow
-
question_answer86)
\[\alpha -D-\]glucose and \[\beta -D-\]glucose differ from each other due to difference in one of the carbons with respect to its [CBSE PMT 1995; AFMC 1999]
A)
Size of hemiacetal ring done
clear
B)
Number of OH groups done
clear
C)
Configuration done
clear
D)
Conformation done
clear
View Solution play_arrow
-
question_answer87)
Which carbohydrates has highest abundance in human blood [MP PET 1995]
A)
d-fructose done
clear
B)
d-glucose done
clear
C)
Sucrose done
clear
D)
Lactose done
clear
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question_answer88)
Formation of silver mirror by glucose shows that it is a/an
A)
Oxidising agent done
clear
B)
Acid done
clear
C)
Reducing agent done
clear
D)
A salt of silver done
clear
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question_answer89)
Which of the following statements is right
A)
Cellulose are linear polymers of \[\beta -\]glucose molecules with \[\beta -1,\,4-\]linkages done
clear
B)
Starches are polymers of \[\alpha -\]glucose molecules with \[\beta -1,\,4-\]linkages and some \[\beta -1,\,6-\]cross-linkages done
clear
C)
Proteins are polyamides of \[\beta -\]amino acids done
clear
D)
The structural information about their biosynthesis is contained in a class of compounds called nucleic acids, e.g. RNA and DNA done
clear
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question_answer90)
The number of atoms in the cyclic structure of D-fructose is [MP PMT 1997]
A)
5 done
clear
B)
6 done
clear
C)
4 done
clear
D)
7 done
clear
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question_answer91)
Which is used in motion picture films
A)
Cellulose acetate done
clear
B)
Glucose acetate done
clear
C)
Starch acetate done
clear
D)
Sucrose acetate done
clear
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question_answer92)
Glucose reacts with acetic anhydride to form [KCET 1996]
A)
Mono-acetate done
clear
B)
Tetra-acetate done
clear
C)
Penta-acetate done
clear
D)
Hexa-acetate done
clear
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question_answer93)
Which of the following does not show any reducing test of aldehyde [CPMT 1996; Orissa JEE 2004]
A)
Sucrose done
clear
B)
Fructose done
clear
C)
Maltose done
clear
D)
Lactose done
clear
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question_answer94)
When amylases catalyse the hydrolysis of starch, the final product obtained is chiefly [Pb. PMT 1998]
A)
Cellobiose done
clear
B)
Glucose done
clear
C)
Maltose done
clear
D)
Sucrose done
clear
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question_answer95)
Galactose is converted into glucose in [AFMC 1998]
A)
Mouth done
clear
B)
Stomach done
clear
C)
Liver done
clear
D)
Intestine done
clear
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question_answer96)
Which among the following is the simplest [CPMT 1999]
A)
Glucose done
clear
B)
Cellulose done
clear
C)
Starch done
clear
D)
None of these done
clear
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question_answer97)
Indigestible carbohydrate, which is also a constituent of our diet, is [Kerala (Med.) 1999]
A)
Cellulose done
clear
B)
Galactose done
clear
C)
Maltose done
clear
D)
Starch done
clear
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question_answer98)
Starch is converted into maltose by the [DPMT 1979; CPMT 1982; BHU 1999]
A)
Maltase done
clear
B)
Invertase done
clear
C)
Zymase done
clear
D)
Diastase done
clear
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question_answer99)
The disaccharide present in milk is [CPMT 1982, 87, 91; MP PET 2001]
A)
Maltose done
clear
B)
Lactose done
clear
C)
Sucrose done
clear
D)
Cellobiose done
clear
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question_answer100)
Carbohydrates are used by body mainly [DCE 1999]
A)
For obtaining vitamins done
clear
B)
As source of energy done
clear
C)
For all its developmental needs done
clear
D)
For building muscles done
clear
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question_answer101)
In the viscose process the solvent for cellulose consists of [JIPMER 1999]
A)
Ether and alcohol done
clear
B)
Copper sulphate and ammonia done
clear
C)
Sodium hydroxide and carbon disulphide done
clear
D)
Acetic acid and acetic anhydride done
clear
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question_answer102)
Which of the following does not reduce Benedict's solution [KCET 2000]
A)
Sucrose done
clear
B)
Aldehyde done
clear
C)
Glucose done
clear
D)
Fructose done
clear
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question_answer103)
In polysaccharides the linkage connecting monosaccharide units is called [MP PMT 2000]
A)
Glycoside linkage done
clear
B)
Nucleoside linkage done
clear
C)
Glycogen linkage done
clear
D)
Peptide linkage done
clear
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question_answer104)
Blood sugar is the same as [DPMT 2000]
A)
Glucose done
clear
B)
Galactose done
clear
C)
Glycogen done
clear
D)
Fructose done
clear
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question_answer105)
Glucose has functional group [MH CET 2000]
A)
Aldehydic done
clear
B)
Aldehydic and alcoholic done
clear
C)
Alcoholic done
clear
D)
Ketonic and alcoholic done
clear
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question_answer106)
Which of the following is an aldohexose [KCET (Engg.) 2001]
A)
Cellulose done
clear
B)
Sucrose done
clear
C)
Glucose done
clear
D)
Raffinose done
clear
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question_answer107)
The calorific value is maximum in case of [Kerala (Med.) 2000]
A)
Milk done
clear
B)
Proteins done
clear
C)
Minerals done
clear
D)
Carbohydrates done
clear
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question_answer108)
An invert sugar is [AFMC 2000]
A)
Isorotatory done
clear
B)
Dextrorotatory done
clear
C)
Laevorotatory done
clear
D)
Optically inactive done
clear
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question_answer109)
The change in optical rotation with time of freshly prepared solutions of sugar is known as [JIPMER 2000]
A)
Maturation done
clear
B)
Rotatory motion done
clear
C)
Inversion done
clear
D)
Specific rotation done
clear
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question_answer110)
Yeast cell derive their energy from glucose by [AIIMS 2001]
A)
Glycolysis done
clear
B)
Respiration formation done
clear
C)
Formation done
clear
D)
None of these done
clear
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question_answer111)
Which of the following is correct statement [CBSE PMT 2001]
A)
Troleins are amino acid done
clear
B)
a-hydrogen is present in fructose done
clear
C)
Starch is polymer of a-glucose done
clear
D)
Amylose is compound of cellulose done
clear
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question_answer112)
Which of the following is a aldohexose [KCET 2001]
A)
Cellulose done
clear
B)
Sucrose done
clear
C)
Galactose done
clear
D)
Raffinose done
clear
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question_answer113)
The ultimate product of the hydrolysis of starch is [DPMT 2001]
A)
Fructose done
clear
B)
Glucose done
clear
C)
Sucrose done
clear
D)
None of these done
clear
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question_answer114)
Raffinose is [Pb. PMT 2001]
A)
Trisaccharide done
clear
B)
Monosaccharide done
clear
C)
Disaccharide done
clear
D)
None of these done
clear
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question_answer115)
A sugar, that is not a disaccharide, among the following is [KCET (Med./Engg.) 2002]
A)
Lactose done
clear
B)
Galactose done
clear
C)
Sucrose done
clear
D)
Maltose done
clear
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question_answer116)
To detect the reducing and non reducing sugars, which of the following test is used [MH CET 2002]
A)
Molisch test done
clear
B)
Biuret test done
clear
C)
Fehling's test done
clear
D)
Millions test done
clear
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question_answer117)
Which of the following is a disaccharide [MH CET 2002]
A)
Glucose done
clear
B)
Ribulose done
clear
C)
Lactose done
clear
D)
Arabinose done
clear
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question_answer118)
On heating glucose with Fehling's solution we get a precipitate whose colour is [CPMT 1979; CBSE PMT 1988; KCET 1992; DPMT 1983, 86; MP PMT 1996]
A)
Yellow done
clear
B)
Red done
clear
C)
Black done
clear
D)
White done
clear
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question_answer119)
Glycolysis is [CBSE PMT 2003]
A)
Conversion of glucose to haem done
clear
B)
Oxidation of glucose to glutamate done
clear
C)
Conversion of pyruvate to citrate done
clear
D)
Oxidation of glucose to pyruvate done
clear
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question_answer120)
Which of the following is an example of ketohexose [Orissa JEE 2003]
A)
Mannose done
clear
B)
Galactose done
clear
C)
Maltose done
clear
D)
Fructose done
clear
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question_answer121)
The safest and the most common alternative of sugar is [MP PMT 2003]
A)
Glucose done
clear
B)
Aspartame done
clear
C)
Saccharin done
clear
D)
Cyclodextrin done
clear
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question_answer122)
The specific rotation of equilibrium mixture of a-D-glucose and b-D-glucose, is [MP PMT 2003]
A)
\[+{{19}^{o}}\] done
clear
B)
\[+{{112}^{o}}\] done
clear
C)
\[+{{52}^{o}}\] done
clear
D)
\[+{{100}^{o}}\] done
clear
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question_answer123)
The charring of sugar, when treated with conc. \[{{H}_{2}}S{{O}_{4}},\] is due to [Pb. CET 2002]
A)
Oxidation done
clear
B)
Reduction done
clear
C)
Dehydration done
clear
D)
Hydrolysis done
clear
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question_answer124)
Which among the following is the simplest sugar [Pb. CET 2002]
A)
Glucose done
clear
B)
Cellulose done
clear
C)
Starch done
clear
D)
Glycogen done
clear
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question_answer125)
Glucose and mannose are [Orissa JEE 2004]
A)
Epimers done
clear
B)
Anomers done
clear
C)
Ketohexoses done
clear
D)
Disaccharides done
clear
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question_answer126)
On hydrolysis, which produces only glucose [BVP 2004]
A)
Galactose done
clear
B)
Maltose done
clear
C)
Sucrose done
clear
D)
None done
clear
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question_answer127)
Pick out the one which does not belong to the family [KCET 2004]
A)
Pepsin done
clear
B)
Cellulose done
clear
C)
Ptyalin done
clear
D)
Lipase done
clear
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question_answer128)
Which of the following is the sweetest sugar [MP PMT 1997; CBSE PMT 1999; AIIMS 2000 Manipal MEE 1995; CPMT 1996; BHU 1997;]
A)
Glucose done
clear
B)
Fructose done
clear
C)
Lactose done
clear
D)
Sucrose done
clear
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question_answer129)
Oxidation of glucose is one of the most important reactions in a living cell. What is the number of ATP molecules generated in cells from one molecule of glucose [CBSE PMT 1995]
A)
38 done
clear
B)
12 done
clear
C)
18 done
clear
D)
28 done
clear
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question_answer130)
Glucose has difference from fructose in that it [BHU 2005]
A)
Does not undergo hydrolysis done
clear
B)
Gives silver mirror with Tollen's reagent done
clear
C)
Monosaccharide done
clear
D)
None of these done
clear
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question_answer131)
In fructose, the possible optical isomers are [Orissa JEE 2005]
A)
12 done
clear
B)
8 done
clear
C)
16 done
clear
D)
4 done
clear
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question_answer132)
If an aqueous solution of glucose is allowed to freeze than crystal of which will be separated out first [DPMT 2005]
A)
Glucose done
clear
B)
Water done
clear
C)
Both of these done
clear
D)
None of these done
clear
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question_answer133)
Which is false [J & K 2005]
A)
Glucose is a disaccharide done
clear
B)
Starch is a polysaccharide done
clear
C)
Glucose and fructose are not anomers done
clear
D)
Invert sugar consists of glucose and fructose done
clear
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