Chemistry Question Bank

In the scheme given below, the total number of intramolecular aldol condensation products formed from ′′푌′′ is (a)1 (b)2 (c)3 (d)4

(a) (b) (c) (d)

Which of the following compound will undergo self aldol condensation in the presence of cold dilute alkali

3-hydroxy butanal is formed when X reacts with Y in dilute Z solution. What are X, Y and Z? X Y Z (a) CH3CHO, (CH3)2CO, NaOH (b) CH3CHO, CH3CHO, NaCl (c) (CH3)2CO, (CH3)2CO, HCl (d) CH3CHO, CH3CHO, NaOH

Which of the products is formed when acetone is reacted with barium hydroxide solution? (a) (b) (c) (d)

Acetophenone when reacted with a base, C2H5ONa, yields a stable compound which has the structure (a) (b) (c)

Aldol condensation will not take place in

Predict the product ‘B’ in the sequence of reaction

does not show aldol condensation because :

If pentan-2-one is reacted with NaBH4, followed by hydrolysis with D2O, the product will be :

The compound which is not reduced by 퐿푖퐴푙퐻4 is

In the above sequence X can be

퐶퐻3퐶퐻푂+ 퐿푖퐴푙퐻4 →퐶퐻3퐶퐻2푂퐻 Nucleophile added in this reaction is

The product predominates is (a) (b) (c) (d)

For C6H5CHO which of the following is incorrect?

Which one of the following pairs is not correctly matched

Wolff-Kishner reduction is :

In Wolf-Kishner reduction, the carbonyl group of aldehydes and ketones is converted into

Aldehydes and ketones can be reduced to corresponding hydrocarbons by

Clemensen’s reduction of ketones is carried out in

Clemmensen's reduction will convert cyclohexanone into:

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

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

Product may be

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