Chemistry>Organic Chemistry>Aldehydes, Ketones and Carboxylic Acids>Chemical Reactions of Aldehydes and Ketones

HARD

Earn 100

The correct formula of the product of reaction between $ϕ C H O$ and propanoic anhydride in presence of sodium propionate is

50% studentsanswered this correctly

Important Questions on Aldehydes, Ketones and Carboxylic Acids

HARD

Chemistry>Organic Chemistry>Aldehydes, Ketones and Carboxylic Acids>Chemical Reactions of Aldehydes and Ketones

The test performed on compound

x

and their inferences are:

Test	Inference
$(a)$ $2, 4$ - $D N P$ test	Coloured precipitate yellow
$(b)$ Iodoform test	Yellow precipitate
$(c)$ Azo-dye test	No dye formation

Compound $' x'$ is:

MEDIUM

Chemistry>Organic Chemistry>Aldehydes, Ketones and Carboxylic Acids>Chemical Reactions of Aldehydes and Ketones

The major product in the following reaction is:
Question Image

Question Image

MEDIUM

Chemistry>Organic Chemistry>Aldehydes, Ketones and Carboxylic Acids>Chemical Reactions of Aldehydes and Ketones

Question Image

The reagents $A, B$ and $C$ respectively are

MEDIUM

Chemistry>Organic Chemistry>Aldehydes, Ketones and Carboxylic Acids>Chemical Reactions of Aldehydes and Ketones

Which of the following reagents would distinguish cis-cyclopenta-1, 2-diol from the trans-isomer?

HARD

Chemistry>Organic Chemistry>Aldehydes, Ketones and Carboxylic Acids>Chemical Reactions of Aldehydes and Ketones

After completion of the reactions (I and II), the organic compound(s) in the reaction mixtures is(are):

Question Image

Question Image

MEDIUM

Chemistry>Organic Chemistry>Aldehydes, Ketones and Carboxylic Acids>Chemical Reactions of Aldehydes and Ketones

Question Image

Identify Y in the above sequence of reactions

EASY

Chemistry>Organic Chemistry>Aldehydes, Ketones and Carboxylic Acids>Chemical Reactions of Aldehydes and Ketones

Which is the most suitable reagent for the following conversion?

Question Image

EASY

Chemistry>Organic Chemistry>Aldehydes, Ketones and Carboxylic Acids>Chemical Reactions of Aldehydes and Ketones

The most reactive to nucleophilic attack at the carbonyl group is

HARD

Chemistry>Organic Chemistry>Aldehydes, Ketones and Carboxylic Acids>Chemical Reactions of Aldehydes and Ketones

Columns 1, 2 and 3 contain starting materials, reaction conditions and type of reactions respectively.

Column 1	Column 2	Column 3
(I) Toulene	(i) $N a O H / B r_{2}$	(P) Condensation
(II) Acetophenone	(ii) $B r_{2} / h v$	(Q) Carboxylation
(III) Benzaldehyde	(iii) ${(C H_{3} C O)}_{2} O / C H_{3} C O O K$	(R) Substitution
(IV) Phenol	(iv) $N a O H / C O_{2}$	(S) Haloform

For the synthesis of benzoic acid the only correct combination is

MEDIUM

Chemistry>Organic Chemistry>Aldehydes, Ketones and Carboxylic Acids>Chemical Reactions of Aldehydes and Ketones

The major product of the following reaction is:
Question Image

Question Image

MEDIUM

Chemistry>Organic Chemistry>Aldehydes, Ketones and Carboxylic Acids>Chemical Reactions of Aldehydes and Ketones

The compound that does not undergo haloform reaction is

HARD

Chemistry>Organic Chemistry>Aldehydes, Ketones and Carboxylic Acids>Chemical Reactions of Aldehydes and Ketones

In the following reaction sequence, the amount of

D

(in g) formed from

10

moles of acetophenone is ____.

(Atomic weights in

g m o l^{- 1} :

H = 1, C = 12, N = 14, O = 16, Br = 80 .

The yield (%) corresponding to the product in each step is given in the parenthesis)

Question Image

Question Image

MEDIUM

Chemistry>Organic Chemistry>Aldehydes, Ketones and Carboxylic Acids>Chemical Reactions of Aldehydes and Ketones

Haloform reaction with

I_{2}

and

KOH

will be responded by

MEDIUM

Chemistry>Organic Chemistry>Aldehydes, Ketones and Carboxylic Acids>Chemical Reactions of Aldehydes and Ketones

For the reaction-

Question Image rate of reaction is faster, when $Z$ is-

HARD

Chemistry>Organic Chemistry>Aldehydes, Ketones and Carboxylic Acids>Chemical Reactions of Aldehydes and Ketones

Benzaldehyde can be converted to benzyl alcohol in concentrated aqueous

NaOH

solution using

EASY

Chemistry>Organic Chemistry>Aldehydes, Ketones and Carboxylic Acids>Chemical Reactions of Aldehydes and Ketones

Ethanal is treated with a primary alcohol in presence of of

HCl

gas. The reaction is known as

MEDIUM

Chemistry>Organic Chemistry>Aldehydes, Ketones and Carboxylic Acids>Chemical Reactions of Aldehydes and Ketones

A compound

C_{5} H_{10} O (A)

forms a phenylhydrazone and gives negative Tollen's test and a positive Iodoform reaction. It also gives

n

-pentane on reduction. The compound

(A)

is

MEDIUM

Chemistry>Organic Chemistry>Aldehydes, Ketones and Carboxylic Acids>Chemical Reactions of Aldehydes and Ketones

In the following reaction
carbonyl compound

+ M e O H \overset{H C l}{⇌} a c e t a l

Rate of the reaction is the highest for:

HARD

Chemistry>Organic Chemistry>Aldehydes, Ketones and Carboxylic Acids>Chemical Reactions of Aldehydes and Ketones

The major product of the following reaction is:

Question Image

EASY

Chemistry>Organic Chemistry>Aldehydes, Ketones and Carboxylic Acids>Chemical Reactions of Aldehydes and Ketones

Reaction of a carbonyl compound with one of the following reagents involves nucleophilic addition followed by elimination of water. The reagent is: