Treatment of cyclopentanone  with methyl lithium gives which of the

following species?

1. Cyclopentanonyl anion

2. Cyclopentanonyl cation

3. Cyclopentanonyl radical

4. Cyclopentanonyl biradical

An ester that gets hydrolyzed most easily under alkaline conditions is:

1.		2.
3.		4.

Reaction of a carbonyl compound with one of the following reagents involves nucleophilic

addition followed by the elimination of water. The reagent is:

1. a Grignard reagent

2. hydrazine in presence of feebly acidic solution

3. hydrocyanic acid

4. sodium hydrogen sulphite

The reaction by which benzaldehyde cannot be prepared?

Predicts the products in the given reaction,

Clemmensen reduction of a ketone is carried out in the presence of which of the following ?

1. Zn-Hg with HCl

2. LiAlH₄ 

3. H₂ and Pt as catalyst

4. Glycol with KOH

Which of the following reactions will not result in the formation of carbon-carbon bonds ?

1. Reimer-Tiemann reaction

2. Cannizaro reaction

3. Wurtz reaction

4. Friedel-Crafts acylation

Trichloroacetaldehyde, CCl₃CHO reacts with chlorobenzene in presence of sulphuric acid and produces

Which one of the following on treatement with 50% aqueous sodium hydroxide yields the corresponding alcohol and acid ?

(1) ${\mathrm{C}}_6{\mathrm{H}}_5{\mathrm{CH}}_2\mathrm{CHO}$

(2) ${\mathrm{C}}_6{\mathrm{H}}_5\mathrm{CHO}$

(3) ${\mathrm{CH}}_3{\mathrm{CH}}_2{\mathrm{CH}}_2\mathrm{CHO}$

(4) $C{H}_3-\stackrel{\stackrel{O}{\left|\right|}}{C}-C{H}_3$