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question_answer1)
\[{{C}_{2}}{{H}_{2}}\xrightarrow[Dil.{{H}_{2}}S{{O}_{4}}]{HgS{{O}_{4}}}P\xrightarrow{(0)}\] \[Q\xrightarrow[Pyridine]{SOC{{l}_{2}}}R\xrightarrow{{{({{C}_{2}}{{H}_{5}})}_{2}}Cd}S\] The end product in the above sequence of reactions is
A)
Ethylethanal done
clear
B)
2-Butanone done
clear
C)
Propanal done
clear
D)
Propanone done
clear
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question_answer2)
A hydrocarbon \[X({{C}_{7}}{{H}_{12}})\] on ozonolysis followed by the treatment with \[{{(C{{H}_{3}})}_{2}}S\] gives \[{{C}_{7}}{{H}_{12}}{{O}_{2}}\]which gives positive Tollen?s test as well as positive iodoform test. The compound below satisfying the criteria of X is
A)
B)
C)
D)
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question_answer3)
Consider the following reaction sequence:
Final major product X. The correct statement regarding X is
A)
It has an aldehyde functional group done
clear
B)
it has both aldehyde and Ketone functional groups done
clear
C)
it has a ketone functional group done
clear
D)
it has a ketone and an acid functional group done
clear
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question_answer4)
\[\xrightarrow[+{{H}_{2}}O]{1moleC{{H}_{3}}-Mg-x}\]? The product is
A)
B)
C)
D)
All of these done
clear
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question_answer5)
Arrange the following in the increasing order of reactivity with \[N{{H}_{3}}\]: |
(I) \[C{{H}_{2}}O\] |
(II) \[C{{H}_{3}}CHO\] |
(III) \[C{{H}_{3}}-CO-C{{H}_{3}}\] |
(IV) |
A)
I<II<III<IV done
clear
B)
III<IV<I<II done
clear
C)
IV<III<II<I done
clear
D)
II<I<IV<III done
clear
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question_answer6)
Hemiacetals are usually unstable whereas acetals are stable which has the most stable hemiacetal?
A)
B)
C)
D)
\[{{C}_{6}}{{H}_{6}}-CHO\] done
clear
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question_answer7)
In the reaction given below,
The final major product is
A)
B)
C)
D)
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question_answer8)
In the reaction given below, the final product X is
A)
B)
C)
D)
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question_answer9)
Acetaldehyde on warming with Fehling solution gives a red precipitate of
A)
Elemental copper done
clear
B)
Cuprous oxide done
clear
C)
Cupric oxide done
clear
D)
Mixture of all of the above done
clear
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question_answer10)
[A] is:
A)
B)
C)
D)
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question_answer11)
Which is the most suitable reagent for the following transformation?
A)
\[Zn(Hg)-HCl\] done
clear
B)
\[LiAi{{H}_{4}}\] done
clear
C)
\[{{N}_{2}}{{H}_{4}}/NaOH/Heat\] done
clear
D)
\[NaB{{H}_{4}}\] done
clear
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question_answer12)
Reaction is:
A)
B)
C)
D)
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question_answer13)
In the reaction, \[{{(C{{H}_{3}})}_{3}}CCHO+HCHO\xrightarrow[heat]{NaOH}A+B\] The products (1) and (2) are respectively:
A)
\[{{(C{{H}_{3}})}_{3}}CCOONa\] and \[C{{H}_{3}}OH\] done
clear
B)
\[{{(C{{H}_{3}})}_{3}}CC{{H}_{2}}OH\] and \[C{{H}_{3}}OH\] done
clear
C)
\[{{(C{{H}_{3}})}_{3}}COONa\] and \[HCOO{{N}^{-}}N{{a}^{+}}\] done
clear
D)
\[{{(C{{H}_{3}})}_{3}}CC{{H}_{2}}OH\]and \[HCO{{O}^{-}}N{{a}^{+}}\] done
clear
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question_answer14)
Consider the following reaction:
The correct statement regarding the above reaction is
A)
Reaction involves a rearrangement via a bicycle intermediate done
clear
B)
It is a simple oxidation reaction done
clear
C)
It is a condensation reaction done
clear
D)
All of the above done
clear
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question_answer15)
Which ester given below can most easily be produced by acid catalysed esterification (Fischer's esterification)?
A)
\[C{{H}_{3}}C{{H}_{2}}COO{{C}_{6}}{{H}_{5}}\] done
clear
B)
\[C{{H}_{3}}C{{H}_{2}}COOCH(C{{H}_{3}})C{{H}_{2}}C{{H}_{3}}\] done
clear
C)
\[C{{H}_{3}}C{{H}_{2}}COOC{{(C{{H}_{3}})}_{2}}C{{H}_{2}}C{{H}_{3}}\] done
clear
D)
\[C{{H}_{3}}C{{H}_{2}}COO{{C}_{2}}{{H}_{5}}\] done
clear
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question_answer16)
On mixing ethy1 acetate with aqueous sodium chloride, the composition of the resultant solution is
A)
\[C{{H}_{3}}Cl+{{C}_{2}}{{H}_{5}}COONa\] done
clear
B)
\[C{{H}_{3}}COONa+{{C}_{2}}{{H}_{5}}OH\] done
clear
C)
\[C{{H}_{3}}COCl+{{C}_{2}}{{H}_{5}}OH+NaOH\] done
clear
D)
\[C{{H}_{3}}COO{{C}_{2}}{{H}_{5}}+NaCl\] done
clear
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question_answer17)
The best reagent to convert pent-3-en-2-ol into pent-3-en-2-one is
A)
acidic \[KMn{{O}_{4}}\] done
clear
B)
alkaline \[{{K}_{2}}C{{r}_{2}}{{O}_{7}}\] done
clear
C)
chromic anhydride in glacial acetic acid done
clear
D)
pyridinium chloro chromate done
clear
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question_answer18)
Trichloroacetaldehyde was subjected to cannizaro's reaction by using NaOH. The mixture of the products contains sodium trichloroacetate ion and another compound. The other compound is
A)
2, 2, 2-trichlorethanol done
clear
B)
trichloromethanol done
clear
C)
2, 2, 2-trichloroethanol done
clear
D)
chloroform done
clear
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question_answer19)
Silver mirror test is given by which one of the following compounds?
A)
Acetaldehyde done
clear
B)
Acetone done
clear
C)
Diethyl ether done
clear
D)
Benzophenone done
clear
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question_answer20)
The compound that will not give iodoform on treatment with alkali and iodine is
A)
acetone done
clear
B)
ethanol done
clear
C)
diethyl ketone done
clear
D)
isopropyl alcohol done
clear
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question_answer21)
Aromatic carbonyl compounds having molecular formula \[{{C}_{8}}{{H}_{8}}O\] react with \[N{{H}_{2}}OH.\] How many oximes can be formed?
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question_answer22)
Examine the structural formulas of following compounds and find number of compounds which show higher rate of nucleophilic addition than
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question_answer23)
Examine the structural formulas given below and identify the number of compounds which are reduced by \[NaB{{H}_{4}}\]
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question_answer24)
\[C{{H}_{3}}CH=O+C{{H}_{3}}C{{H}_{2}}-CH=O\xrightarrow{H{{O}^{-}},\,\,\Delta }\]mixture of aldols (z). Find the total number of alcohols including stereoisomers and report your answer as (z-5).
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question_answer25)
Amongst the following, the total number of compounds soluble in aqueous NaOH is
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