MEDIUM
Earn 100

Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R.
Assertion AQuestion Imagecan be subjected to Wolff-Kishner reduction to give Question Image
Reason R: Wolff-Kishner reduction is used to convert Question Image into Question Image
In the light of the above statements, choose the correct answer from the options given below:

50% studentsanswered this correctly

Important Questions on Aldehydes and Ketones

HARD

Reagent(s) which can be used to bring about the following transformation is(are)


Question Image

EASY
The reduction product of ethyl 3-oxobutanoate by NaBH4 in methanol is
EASY

The appropriate reagent for the following transformation is

Question Image

MEDIUM

Question Image

In the above reactions, product A and product B respectively are:

MEDIUM

The major product 'X' formed in the following reaction is:

Question Image

MEDIUM
4-Formyl benzoic acid on treatment with one equivalent of hydrazine by heating with alcoholic KOH gives the major product-
MEDIUM

The increasing order of the reactivity of the following with LiAlH4 is:

(A) Question Image

(B) Question Image

(C) Question Image

(D) Question Image

MEDIUM

Question Image

Considering the above reaction, the major product among the following is:

EASY
Aldehydes and ketones can be reduced to hydrocarbon by using
EASY
Aldehydes and ketones those are not sensitive to acids when heated with zinc amalgam and concentrated hydrochloric acid give alkane. This reaction is known as
HARD
Match the following.
  Column-1
Reaction
  Column-2
product
A

Question Image

I Cyclohexanol
B Question Image II Benzyl alcohol
C

Question Image

III Toluene
    IV Benzaldehyde
    V Cyclohexane

The correct match is

EASY
Experimentally reducing a functional group cannot be done by which one of the following reagents ?
EASY
An organic compound 'X' having molecular formula C5H10O yields phenyl hydrazone and gives negative response to the iodoform test and Tollen's test. It produces n-pentane on reduction. 'X' could be: