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ALDEHYDES, KETONES AND CARBOXYLIC ACID

27977 $C H_{3} C O N H_{2} \overset{N a N O_{2} / H C l}{\to} X$

1

C H_{3} C O O H

2

C H_{3} C O \overset{+}{N} H_{3} C l^{-}

3

C H_{3} N H_{2}

4

C H_{3} C H O

Explanation:

(a)Amide, on treating with $H N O_{2},$ give acids.
$C H_{3} C O N H_{2} \underset{(H N O_{2})}{\overset{N a N O_{2} / H C l}{\to}} \underset{}{C H_{3} C O O H} + N_{2} + H_{2} O$

ALDEHYDES, KETONES AND CARBOXYLIC ACID

27978 Primary aldehyde on oxidation gives

1 Esters

2 Carboxylic acid

3 Ketones

4 Alcohols

ALDEHYDES, KETONES AND CARBOXYLIC ACID

27979 Toluene is oxidised to benzoic acid by

1

K M n O_{4}

2

K_{2} C r_{2} O_{7}

3

H_{2} S O_{4}

4 Both (a) and (b)

ALDEHYDES, KETONES AND CARBOXYLIC ACID

27980 The compound $(X)$ is

1

C H_{3} C O O H

2

B r C H_{2} - C O O H

3

(C H_{3} C O)_{2} O

4

C H O - C O O H

Explanation:

(c) This is an example of Perkin’s reaction. Therefore, $(X)$ is Acetic anhydride.

ALDEHYDES, KETONES AND CARBOXYLIC ACID

27977 $C H_{3} C O N H_{2} \overset{N a N O_{2} / H C l}{\to} X$

1

C H_{3} C O O H

2

C H_{3} C O \overset{+}{N} H_{3} C l^{-}

3

C H_{3} N H_{2}

4

C H_{3} C H O

Explanation:

(a)Amide, on treating with $H N O_{2},$ give acids.
$C H_{3} C O N H_{2} \underset{(H N O_{2})}{\overset{N a N O_{2} / H C l}{\to}} \underset{}{C H_{3} C O O H} + N_{2} + H_{2} O$

ALDEHYDES, KETONES AND CARBOXYLIC ACID

27978 Primary aldehyde on oxidation gives

1 Esters

2 Carboxylic acid

3 Ketones

4 Alcohols

ALDEHYDES, KETONES AND CARBOXYLIC ACID

27979 Toluene is oxidised to benzoic acid by

1

K M n O_{4}

2

K_{2} C r_{2} O_{7}

3

H_{2} S O_{4}

4 Both (a) and (b)

ALDEHYDES, KETONES AND CARBOXYLIC ACID

27980 The compound $(X)$ is

1

C H_{3} C O O H

2

B r C H_{2} - C O O H

3

(C H_{3} C O)_{2} O

4

C H O - C O O H

Explanation:

(c) This is an example of Perkin’s reaction. Therefore, $(X)$ is Acetic anhydride.

ALDEHYDES, KETONES AND CARBOXYLIC ACID

27977 $C H_{3} C O N H_{2} \overset{N a N O_{2} / H C l}{\to} X$

1

C H_{3} C O O H

2

C H_{3} C O \overset{+}{N} H_{3} C l^{-}

3

C H_{3} N H_{2}

4

C H_{3} C H O

Explanation:

(a)Amide, on treating with $H N O_{2},$ give acids.
$C H_{3} C O N H_{2} \underset{(H N O_{2})}{\overset{N a N O_{2} / H C l}{\to}} \underset{}{C H_{3} C O O H} + N_{2} + H_{2} O$

ALDEHYDES, KETONES AND CARBOXYLIC ACID

27978 Primary aldehyde on oxidation gives

1 Esters

2 Carboxylic acid

3 Ketones

4 Alcohols

ALDEHYDES, KETONES AND CARBOXYLIC ACID

27979 Toluene is oxidised to benzoic acid by

1

K M n O_{4}

2

K_{2} C r_{2} O_{7}

3

H_{2} S O_{4}

4 Both (a) and (b)

ALDEHYDES, KETONES AND CARBOXYLIC ACID

27980 The compound $(X)$ is

1

C H_{3} C O O H

2

B r C H_{2} - C O O H

3

(C H_{3} C O)_{2} O

4

C H O - C O O H

Explanation:

(c) This is an example of Perkin’s reaction. Therefore, $(X)$ is Acetic anhydride.

ALDEHYDES, KETONES AND CARBOXYLIC ACID

27977 $C H_{3} C O N H_{2} \overset{N a N O_{2} / H C l}{\to} X$

1

C H_{3} C O O H

2

C H_{3} C O \overset{+}{N} H_{3} C l^{-}

3

C H_{3} N H_{2}

4

C H_{3} C H O

Explanation:

(a)Amide, on treating with $H N O_{2},$ give acids.
$C H_{3} C O N H_{2} \underset{(H N O_{2})}{\overset{N a N O_{2} / H C l}{\to}} \underset{}{C H_{3} C O O H} + N_{2} + H_{2} O$

ALDEHYDES, KETONES AND CARBOXYLIC ACID

27978 Primary aldehyde on oxidation gives

1 Esters

2 Carboxylic acid

3 Ketones

4 Alcohols

ALDEHYDES, KETONES AND CARBOXYLIC ACID

27979 Toluene is oxidised to benzoic acid by

1

K M n O_{4}

2

K_{2} C r_{2} O_{7}

3

H_{2} S O_{4}

4 Both (a) and (b)

ALDEHYDES, KETONES AND CARBOXYLIC ACID

27980 The compound $(X)$ is

1

C H_{3} C O O H

2

B r C H_{2} - C O O H

3

(C H_{3} C O)_{2} O

4

C H O - C O O H

Explanation:

(c) This is an example of Perkin’s reaction. Therefore, $(X)$ is Acetic anhydride.

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