Chemistry Question Bank

Catalyst used in Rosenmund reduction is

What reagent is used in the Rosenmund reduction?

Reduction of acetonitrile in presence of SnCl2/HCl, followed by hydrolysis gives :

The reagent used in Gattermann Koch aldehyde synthesis is

Arrange the following compounds in increasing order of their reactivity in nucleophilic addition reactions. Ethanal (I), Propanal (II), Propanone (III), Butanone (IV)

A carbonyl compound reacts with hydrogen cyanide to form cyanohydrin which on hydrolysis forms a racemic mixture of a α-hydroxy acid. The carbonyl compound is

The increasing order of the rate of HCN addition to compounds A-D is

Nucleophilic addition reaction will be most favoured in

Which of the aldehyde is most reactive towards nucleophilic addition reaction ?

Product may be

Which of the following carbonyl oxygen will form strongest hydrogen bond with 퐻2푂 molecule? (a) (b) (c) (d)

Correct order of reactivity of CH3CHO, C2H5COCH3 and CH3COCH3 is

The most reactive compound towards formation of cyanohydrin on treatment with HCN followed by acidification is

A and B in the following reactions are (a) (b) (c)

Reaction of acetaldehyde with HCN followed by hydrolysis gives a compound which shows

Which one of the following does not form sodium bisulphite addition product with sodium bisulphite solution

Benzaldehyde condenses with N,N-dimethylaniline in presence of anhydrous ZnCl2 to give

Which of the following species is the conjugate acid of the hemiacetal formed by reaction of benzaldehyde with methanol containing a trace of acid ? (a) (b) (c) (d)

Grignard reagent on reaction with acetone forms

Product in following reaction is CH3MgI + HCHO → Product

The order of reactivity of phenyl magnesium bromide with the following compounds is

Identify the reactant X and the product Y

Which of the following reagents converts both acetaldehyde and acetone to alkanes?

Clemmensen reduction involves > C = O to > CH2 in presence of

Clemmensen's reduction will convert cyclohexanone into: