-
question_answer1)
Which will undergo a Friedel-Craft's alkylation reaction [Pb. PMT 1998]
A)
1, 2 and 4 done
clear
B)
1 and 3 done
clear
C)
2 and 4 done
clear
D)
1 and 2 done
clear
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question_answer2)
The product ?A? in the following reaction is \[\begin{array}{*{35}{l}} {{H}_{2}}C\,\,C{{H}_{2}} \\ \begin{align} & \,\,\,\,\,\,\,\,\,\,\,\, \\ & \,\,\,\,\,\,\,\,\,\,\,\,\overset{\backslash /}{\mathop{O}}\, \\ \end{align} \\ \end{array}\xrightarrow{RMgI}A\] [MP PMT 2003]
A)
\[RCHOHR\] done
clear
B)
\[RCHOH\cdot C{{H}_{3}}\] done
clear
C)
\[R-C{{H}_{2}}-C{{H}_{2}}-OH\] done
clear
D)
\[\begin{array}{*{35}{l}} R \\ R \\ \end{array}>CHC{{H}_{2}}OH\] done
clear
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question_answer3)
Glycerol boils at \[{{290}^{o}}C\] with slight decomposition. Impure glycerin can be purified by [CPMT 1983, 94]
A)
Steam distillation done
clear
B)
Simple distillation done
clear
C)
Vacuum distillation done
clear
D)
Extraction with a solvent done
clear
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question_answer4)
Phenol \[\xrightarrow{NaN{{O}_{2}}/{{H}_{2}}S{{O}_{4}}}B\xrightarrow{{{H}_{2}}O}C\xrightarrow{NaOH}D\] Name of the above reaction is [KCET 2003]
A)
Liebermann?s reaction done
clear
B)
Phthalein fusion test done
clear
C)
Reimer-Tiemann reaction done
clear
D)
Schottenf-Baumann reaction done
clear
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question_answer5)
The correct order of boiling point for primary \[({{1}^{o}}),\] secondary \[({{2}^{o}})\] and tertiary \[({{3}^{o}})\] alcohols is [CPMT 1999; RPMT 2002]
A)
\[{{1}^{o}}>{{2}^{o}}>{{3}^{o}}\] done
clear
B)
\[{{3}^{o}}>{{2}^{o}}>{{1}^{o}}\] done
clear
C)
\[{{2}^{o}}>{{1}^{o}}>{{3}^{o}}\] done
clear
D)
\[{{2}^{o}}>{{3}^{o}}>{{1}^{o}}\] done
clear
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question_answer6)
What will be the products of reaction if methoxybenzene reacts with HI
A)
Methyl alcohol (methanol) + iodobenzene done
clear
B)
Methyl iodide (iodomethane) + benzene done
clear
C)
Methyle iodide + phenol done
clear
D)
Methyl iodide + iodobenzene done
clear
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question_answer7)
Ethylene reacts with Baeyer's reagent to give [CPMT 1988]
A)
Ethane done
clear
B)
Ethyl alcohol done
clear
C)
Ethylene glycol done
clear
D)
None of these done
clear
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question_answer8)
Which of the following statements is correct regarding case of dehydration in alcohols [CPMT 1980, 85; MP PMT 2001; BHU 2002]
A)
Primary > Secondary done
clear
B)
Secondary > Tertiary done
clear
C)
Tertiary > Primary done
clear
D)
None of these done
clear
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question_answer9)
Oxiran is
A)
Ethylene oxide done
clear
B)
Diethyl ether done
clear
C)
Ethyl glycolate done
clear
D)
Glycolic ester done
clear
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question_answer10)
Propan-1-ol can be prepared from propene by alcohol [AIIMS 2003]
A)
\[{{H}_{2}}O/{{H}_{2}}S{{O}_{4}}\] done
clear
B)
\[Hg{{(OAc)}_{2}}/{{H}_{2}}O\]followed by \[NaB{{H}_{4}}\] done
clear
C)
\[{{B}_{2}}{{H}_{6}}\]followed by \[{{H}_{2}}{{O}_{2}}\] done
clear
D)
\[C{{H}_{3}}C{{O}_{2}}H/{{H}_{2}}S{{O}_{4}}\] done
clear
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question_answer11)
Distinction between primary, secondary and tertiary alcohol is done by [MP PMT/PET 1988; RPMT 2000]
A)
Oxidation method done
clear
B)
Lucas test done
clear
C)
Victor Meyer method done
clear
D)
All of these done
clear
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question_answer12)
Oxidation of which of the following by air in presence of vanadium pentoxide gives phenol
A)
Toluene done
clear
B)
Benzene done
clear
C)
Benzaldehyde done
clear
D)
Phenyl acetic acid done
clear
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question_answer13)
The most suitable method of the separation of a 1 : 1 mixture of ortho and para nitrophenols is [CBSE PMT 1994, 99; CPMT 1997]
A)
Distillation done
clear
B)
Sublimation done
clear
C)
Crystallization done
clear
D)
Chromatography done
clear
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question_answer14)
Which of the following does not form phenol or phenoxide [AFMC 2000]
A)
\[{{C}_{6}}{{H}_{5}}Cl\] done
clear
B)
\[{{C}_{6}}{{H}_{5}}COOH\] done
clear
C)
\[{{C}_{6}}{{H}_{5}}{{N}_{2}}Cl\] done
clear
D)
\[{{C}_{6}}{{H}_{5}}S{{O}_{3}}Na\] done
clear
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question_answer15)
Which of the following will be obtained by keeping ether in contact with air for a long time [RPMT 2003]
A)
\[{{C}_{2}}{{H}_{5}}-O-CH\ (C{{H}_{3}})-O-OH\] done
clear
B)
\[{{C}_{2}}{{H}_{5}}-OC{{H}_{2}}-OH\] done
clear
C)
\[{{C}_{2}}{{H}_{5}}-O-{{C}_{2}}{{H}_{5}}OH\] done
clear
D)
\[C{{H}_{3}}-O\ CH\ (C{{H}_{3}})-O-OH\] done
clear
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question_answer16)
When a mixture of ethanol and methanol is heated in the presence of concentrated \[{{H}_{2}}S{{O}_{4}}\] the resulting organic product or products is/are [Manipal MEE 1995]
A)
\[C{{H}_{3}}O{{C}_{2}}{{H}_{5}}\] done
clear
B)
\[C{{H}_{3}}OC{{H}_{3}}\] and \[{{C}_{2}}{{H}_{5}}O{{C}_{2}}{{H}_{5}}\] done
clear
C)
\[C{{H}_{3}}O{{C}_{2}}{{H}_{5}}\] and \[C{{H}_{3}}OC{{H}_{3}}\] done
clear
D)
\[C{{H}_{3}}O{{C}_{2}}{{H}_{5}},\] \[C{{H}_{3}}OC{{H}_{3}}\] and \[{{C}_{2}}{{H}_{5}}O{{C}_{2}}{{H}_{5}}\] done
clear
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question_answer17)
In the following groups \[\begin{matrix} -OAc \\ \text{I} \\ \end{matrix}\] \[\begin{matrix} -OMe \\ \text{II} \\ \end{matrix}\] \[\begin{matrix} -OS{{O}_{2}}Me \\ \text{III} \\ \end{matrix}\] \[\begin{matrix} -OS{{O}_{2}}C{{F}_{3}} \\ \text{IV} \\ \end{matrix}\] The order of leaving group ability is [IIT 1997]
A)
I > II > III > IV done
clear
B)
IV > III > I > II done
clear
C)
III > II > I > IV done
clear
D)
II > III > IV > I done
clear
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question_answer18)
Epoxides are
A)
Cyclic ethers done
clear
B)
Not ethers done
clear
C)
Aryl-alkyl ethers done
clear
D)
Ethers with another functional group done
clear
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question_answer19)
The reaction of
with HBr gives [IIT-JEE 1998]
A)
B)
C)
D)
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question_answer20)
Which of the following compounds on boiling with \[KMn{{O}_{4}}\](alk.) and subsequent acidification will not give benzoic acid [KCET 2001]
A)
Benzyl alcohol done
clear
B)
Acetophenone done
clear
C)
Anisole done
clear
D)
Toluene done
clear
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question_answer21)
The best reagent to convert pent-3-en-2-ol into pent-3-in-2-one is [AIEEE 2005]
A)
Acidic permanganate done
clear
B)
Acidic dichromate done
clear
C)
Chromic anhydride in glacial acetic acid done
clear
D)
Pyridinium chloro-chromate done
clear
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question_answer22)
When alcohol reacts with concentrated \[{{H}_{2}}S{{O}_{4}}\]intermediate compound formed is [AFMC 2005]
A)
Carbonium ion done
clear
B)
Alkoxy ion done
clear
C)
Alkyl hydrogen sulphate done
clear
D)
None of these done
clear
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