Aldehydes, Ketones and Carboxylic Acids

Which of the following cannot reduce Fehling solution ?

• HCOOH

• H₃CCOOH

• HCHO

• H₃CCHO

Assertion : (CH₃)₃CCOOH does not give HVZ reaction.

Reason: (CH₃)₃CCOOH does not have $\text{α}$-hydrogen atom.

• If both assertion and reason are true and reason is the correct explanation of assertion.

• If both assertion and reason are true but reason is not the correct explanation of assertion.

• If assertion is true but reason is false.

• If both assertion and reason are false.

Which of the following compounds is resistant to nucleophilic attack by hydroxyl ion ?

• Methylacetate

• Acetonitrile

• Acetamide

• Diethyl ether

Aldehyde which is formed during photosynthesis of plants is :

• methanal

• acetaldehyde

• propanal

• phenylmethanal

CH₃CHO + CH₃CHO $\stackrel{\mathrm{Dil} {\mathrm{OH}}^{-}}{\to }$ CH₃CH(OH)CH₂CHO , the intermediate in the above reaction is :

• carbanion

• carbonium ion

• carbene

• None of these

What is the product B in the following reaction sequence ?

CH₃-$\stackrel{\underset{\left|\right|}{\mathrm{O}}}{\mathrm{C}}$-CH₃ $\stackrel{\mathrm{KCN} / {\mathrm{H}}_2{\mathrm{SO}}_4}{\to }$ A $\stackrel{{\mathrm{LiAlH}}_4}{\to }$ B

• 

• (CH₃)₂-C(OH)-COOH

• (CH₃)₂-C(OH)-CH₂NH₂

• (CH₃)₂-CH-CN

CH₃COOC₂H₅ with excess of C₂H₅MgBr and hydrolysis gives :

• C₂H₅-C(CH₃)=O

• (C₂H₅)₂-C(CH₃)-OH

• (CH₃)₂-C=O

• (CH₃)₂-C(C₂H₅)-OH

The IUPAC name for the formula :

 is :

• 2-methyl-2-butenoic acid

• 3-methyl-3-butenoic acid

• 3-metyl-2-butenoic acid

• 2-methyl-3-butenoic acid

In a set of reactions, acetic acid yielded a product S,

${\text{CH}}_3\mathrm{COOH} \stackrel{{\mathrm{SOCl}}_2}{\to } \mathrm{P} \underset{\mathrm{Anhy}. {\mathrm{AlCl}}_3}{\overset{\mathrm{Benzene}}{\to }} \mathrm{Q} \stackrel{\mathrm{HCN}}{\to } \mathrm{R} \stackrel{\mathrm{HOH}}{\to }\mathrm{S}$

The structure of S would be

Which of the following can exhibit keto-enol tautomerism ?

• H-$\underset{\stackrel{\left|\right|}{\mathrm{O}}}{\mathrm{C}}$-H

• (CH₃)₃C-$\underset{\stackrel{\left|\right|}{\mathrm{O}}}{\mathrm{C}}$-H

• CH₃-$\stackrel{\underset{\left|\right|}{\mathrm{O}}}{\mathrm{C}}$-H

• CCl₃-$\underset{\stackrel{\left|\right|}{\mathrm{O}}}{\mathrm{C}}$-H