The correct match between Item-I (starting material) and Item-II (reagent) for the preparation of benzaldehyde is : Item-I Item-II (I) Benzene (P) HCl and SnCl 2 , H 3 O + (II) Benzonitrile (Q) H 2 , Pd - BaSO 4 , S and quinoline (III) Benzoyl Chloride (R) Co , HCl and AlCl 3

(I)-(R), (II)-(P) and (III)-(Q)

(I)-(Q), (II)-(R) and (III)-(P)

(I)-(P), (II)-(Q) and (III)-(R)

(I)-(R), (II)-(Q) and (III)-(P)

HARD

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Write chemical equations for the preparation of aldehydes and ketones by hydrolysis of all possible isomers of $C_{4} H_{8} {Cl}_{2}$ .

Important Questions on Aldehydes, Ketones and Carboxylic Acids

EASY

Chemistry>Organic Chemistry>Aldehydes, Ketones and Carboxylic Acids>Preparation of Aldehydes and Ketones

Identify compound (A) in the following reaction :

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Chemistry>Organic Chemistry>Aldehydes, Ketones and Carboxylic Acids>Preparation of Aldehydes and Ketones

Consider the following reactions:

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'A' is

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Chemistry>Organic Chemistry>Aldehydes, Ketones and Carboxylic Acids>Preparation of Aldehydes and Ketones

An alkene on ozonolysis gives methanal as one of the product. Its structure is

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Chemistry>Organic Chemistry>Aldehydes, Ketones and Carboxylic Acids>Preparation of Aldehydes and Ketones

The major product of the following reaction sequence is

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Chemistry>Organic Chemistry>Aldehydes, Ketones and Carboxylic Acids>Preparation of Aldehydes and Ketones

An alkene

' A'

on reaction with

O_{3}

and

Z n - H_{2} O

gives propanone and ethanal in equimolar ratio. Additional of

H C l

to alkene

' A'

gives

' B'

as the major product. The structure of product

' B'

is:

MEDIUM

Chemistry>Organic Chemistry>Aldehydes, Ketones and Carboxylic Acids>Preparation of Aldehydes and Ketones

Reductive ozonolysis of

{({CH}_{3})}_{2} C = C {({CH}_{3})}_{2}

followed by hydrolysis gives

HARD

Chemistry>Organic Chemistry>Aldehydes, Ketones and Carboxylic Acids>Preparation of Aldehydes and Ketones

The major product obtained from the following reaction is :

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EASY

Chemistry>Organic Chemistry>Aldehydes, Ketones and Carboxylic Acids>Preparation of Aldehydes and Ketones

The reaction of acetylene with

H_{2} O

, in the presence of a catalytic amount of

{HgSO}_{4}

and dilute

H_{2} {SO}_{4}

, gives the product

A

. Compound

A

, upon treatment with aqueous

NaOH

, forms

B

. What are

A

and

B

HARD

Chemistry>Organic Chemistry>Aldehydes, Ketones and Carboxylic Acids>Preparation of Aldehydes and Ketones

In the following reaction

A

HARD

Chemistry>Organic Chemistry>Aldehydes, Ketones and Carboxylic Acids>Preparation of Aldehydes and Ketones

The number of chiral centres present in

[B]

is _____

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Chemistry>Organic Chemistry>Aldehydes, Ketones and Carboxylic Acids>Preparation of Aldehydes and Ketones

The major product obtained in the reaction of isobutyl benzene with acetic anhydride in the presence of anhydrous

{AlCl}_{3}

is:

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Chemistry>Organic Chemistry>Aldehydes, Ketones and Carboxylic Acids>Preparation of Aldehydes and Ketones

The major product obtained in the following reaction is

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Chemistry>Organic Chemistry>Aldehydes, Ketones and Carboxylic Acids>Preparation of Aldehydes and Ketones

Which of the following is obtained by hydrogenation of benzoyl chloride in presence of

Pd

{BaSO}_{4}

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Chemistry>Organic Chemistry>Aldehydes, Ketones and Carboxylic Acids>Preparation of Aldehydes and Ketones

An alkene of molecular formula

C_{9} H_{18}

, on ozonolysis gives

2, 2 -

dimethylpropanal &

2 -

butanone, then the alkene is

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Chemistry>Organic Chemistry>Aldehydes, Ketones and Carboxylic Acids>Preparation of Aldehydes and Ketones

Which of the following compounds is obtained by dry distillation of calcium propionate?

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Chemistry>Organic Chemistry>Aldehydes, Ketones and Carboxylic Acids>Preparation of Aldehydes and Ketones

Which of the following is Rosenmund reduction?

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Chemistry>Organic Chemistry>Aldehydes, Ketones and Carboxylic Acids>Preparation of Aldehydes and Ketones

What are the products formed in the reaction given below:

$Ph - {CH}_{2} - CH = CH - {CH}_{3} \to_{^{Zn dust + H_{2} O}}^{1) O_{3}}$ ?

MEDIUM

Chemistry>Organic Chemistry>Aldehydes, Ketones and Carboxylic Acids>Preparation of Aldehydes and Ketones

The correct match between Item-I (starting material) and Item-II (reagent) for the preparation of benzaldehyde is :

	Item-I		Item-II
(I)	Benzene	(P)	$HCl$ and ${SnCl}_{2}, H_{3} O +$
(II)	Benzonitrile	(Q)	$H_{2}, Pd - {BaSO}_{4}, S$ and quinoline
(III)	Benzoyl Chloride	(R)	$Co, HCl and {AlCl}_{3}$

EASY

Chemistry>Organic Chemistry>Aldehydes, Ketones and Carboxylic Acids>Preparation of Aldehydes and Ketones

Calcium butanoate on heating followed by treatment with 1, 2-ethanediol in the presence of catalytic amount of an acid, produces a major product which is:

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Chemistry>Organic Chemistry>Aldehydes, Ketones and Carboxylic Acids>Preparation of Aldehydes and Ketones

The major product of the following reaction is:

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Write chemical equations for the preparation of aldehydes and ketones by hydrolysis of all possible isomers of C4H8Cl2.

Important Questions on Aldehydes, Ketones and Carboxylic Acids

Learn and Prepare for any exam you want !

Write chemical equations for the preparation of aldehydes and ketones by hydrolysis of all possible isomers of $C_{4} H_{8} {Cl}_{2}$ .