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ALDEHYDES, KETONES AND CARBOXYLIC ACID

28399 Which of the following undergoes decarboxylation most readily on being heated ?

1

2

3

4

Explanation:

$(d)$ $β$ keto acid will easily undergo de-carboxylation on heating.

ALDEHYDES, KETONES AND CARBOXYLIC ACID

28400 What is compound $Z$ ? $C H_{3} C H_{2} C H_{2} B r \overset{N a C N}{\to}$ $X \to_{h e a t}^{H_{3} O^{+}} Y \to_{H^{+}}^{C H_{3} C H_{2} O H} Z$

1

\begin{matrix} O \\ | | \\ C H_{3} C H = C H C O H \end{matrix}

2

C H_{3} C H_{2} C H_{2} C H = N O C H_{2} C H_{3}

3

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

4

\begin{matrix} O \\ | | \\ C H_{3} C H_{2} C H_{2} C O C H_{2} C H_{3} \end{matrix}

Explanation:

$X = C H_{3} - C H_{2} - C H_{2} - C \equiv N$
$Y = C H_{3} - C H_{2} - C H_{2} - C O_{2} H$
$\begin{matrix} O \\ | | \\ Z = C H_{3} - C H_{2} - C H_{2} - C - O - E t \end{matrix}$
$Y \to Z$ is esterification reaction.

ALDEHYDES, KETONES AND CARBOXYLIC ACID

28401 Product $(A)$ of the reaction is

1

2

3

4

ALDEHYDES, KETONES AND CARBOXYLIC ACID

28402 $C H_{3} - C H = C H - C H_{2} - C O_{2} H \to_{Δ}^{} (X) (m a j o r)$ ; Product $(X)$ is

1

C H_{3} - C H = C H - C H_{3}

2

\begin{matrix} C H_{3} - C = C H_{2} \\ | \\ C H_{3} \end{matrix}

3

C H_{3} - C H_{2} - C H = C H_{2}

4

C H_{3} - C H = C H_{2}

ALDEHYDES, KETONES AND CARBOXYLIC ACID

28403 $\begin{matrix} O O \\ | | | | \\ H - O - C - {(C H_{2})}_{n} - C - O - H \to_{Δ}^{} p r o d u c t \end{matrix}$ ,At what value of $(n)$ given compound will not evolve $C O_{2}$ gas ?

1

5

2

4

3

2

4

1

Explanation:

$(n = 2)$
Succinic acid on heating form anhydride. 364-s213

ALDEHYDES, KETONES AND CARBOXYLIC ACID

28399 Which of the following undergoes decarboxylation most readily on being heated ?

1

2

3

4

Explanation:

$(d)$ $β$ keto acid will easily undergo de-carboxylation on heating.

ALDEHYDES, KETONES AND CARBOXYLIC ACID

28400 What is compound $Z$ ? $C H_{3} C H_{2} C H_{2} B r \overset{N a C N}{\to}$ $X \to_{h e a t}^{H_{3} O^{+}} Y \to_{H^{+}}^{C H_{3} C H_{2} O H} Z$

1

\begin{matrix} O \\ | | \\ C H_{3} C H = C H C O H \end{matrix}

2

C H_{3} C H_{2} C H_{2} C H = N O C H_{2} C H_{3}

3

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

4

\begin{matrix} O \\ | | \\ C H_{3} C H_{2} C H_{2} C O C H_{2} C H_{3} \end{matrix}

Explanation:

$X = C H_{3} - C H_{2} - C H_{2} - C \equiv N$
$Y = C H_{3} - C H_{2} - C H_{2} - C O_{2} H$
$\begin{matrix} O \\ | | \\ Z = C H_{3} - C H_{2} - C H_{2} - C - O - E t \end{matrix}$
$Y \to Z$ is esterification reaction.

ALDEHYDES, KETONES AND CARBOXYLIC ACID

28401 Product $(A)$ of the reaction is

1

2

3

4

ALDEHYDES, KETONES AND CARBOXYLIC ACID

28402 $C H_{3} - C H = C H - C H_{2} - C O_{2} H \to_{Δ}^{} (X) (m a j o r)$ ; Product $(X)$ is

1

C H_{3} - C H = C H - C H_{3}

2

\begin{matrix} C H_{3} - C = C H_{2} \\ | \\ C H_{3} \end{matrix}

3

C H_{3} - C H_{2} - C H = C H_{2}

4

C H_{3} - C H = C H_{2}

ALDEHYDES, KETONES AND CARBOXYLIC ACID

28403 $\begin{matrix} O O \\ | | | | \\ H - O - C - {(C H_{2})}_{n} - C - O - H \to_{Δ}^{} p r o d u c t \end{matrix}$ ,At what value of $(n)$ given compound will not evolve $C O_{2}$ gas ?

1

5

2

4

3

2

4

1

Explanation:

$(n = 2)$
Succinic acid on heating form anhydride. 364-s213

ALDEHYDES, KETONES AND CARBOXYLIC ACID

28399 Which of the following undergoes decarboxylation most readily on being heated ?

1

2

3

4

Explanation:

$(d)$ $β$ keto acid will easily undergo de-carboxylation on heating.

ALDEHYDES, KETONES AND CARBOXYLIC ACID

28400 What is compound $Z$ ? $C H_{3} C H_{2} C H_{2} B r \overset{N a C N}{\to}$ $X \to_{h e a t}^{H_{3} O^{+}} Y \to_{H^{+}}^{C H_{3} C H_{2} O H} Z$

1

\begin{matrix} O \\ | | \\ C H_{3} C H = C H C O H \end{matrix}

2

C H_{3} C H_{2} C H_{2} C H = N O C H_{2} C H_{3}

3

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

4

\begin{matrix} O \\ | | \\ C H_{3} C H_{2} C H_{2} C O C H_{2} C H_{3} \end{matrix}

Explanation:

$X = C H_{3} - C H_{2} - C H_{2} - C \equiv N$
$Y = C H_{3} - C H_{2} - C H_{2} - C O_{2} H$
$\begin{matrix} O \\ | | \\ Z = C H_{3} - C H_{2} - C H_{2} - C - O - E t \end{matrix}$
$Y \to Z$ is esterification reaction.

ALDEHYDES, KETONES AND CARBOXYLIC ACID

28401 Product $(A)$ of the reaction is

1

2

3

4

ALDEHYDES, KETONES AND CARBOXYLIC ACID

28402 $C H_{3} - C H = C H - C H_{2} - C O_{2} H \to_{Δ}^{} (X) (m a j o r)$ ; Product $(X)$ is

1

C H_{3} - C H = C H - C H_{3}

2

\begin{matrix} C H_{3} - C = C H_{2} \\ | \\ C H_{3} \end{matrix}

3

C H_{3} - C H_{2} - C H = C H_{2}

4

C H_{3} - C H = C H_{2}

ALDEHYDES, KETONES AND CARBOXYLIC ACID

28403 $\begin{matrix} O O \\ | | | | \\ H - O - C - {(C H_{2})}_{n} - C - O - H \to_{Δ}^{} p r o d u c t \end{matrix}$ ,At what value of $(n)$ given compound will not evolve $C O_{2}$ gas ?

1

5

2

4

3

2

4

1

Explanation:

$(n = 2)$
Succinic acid on heating form anhydride. 364-s213

ALDEHYDES, KETONES AND CARBOXYLIC ACID

28399 Which of the following undergoes decarboxylation most readily on being heated ?

1

2

3

4

Explanation:

$(d)$ $β$ keto acid will easily undergo de-carboxylation on heating.

ALDEHYDES, KETONES AND CARBOXYLIC ACID

28400 What is compound $Z$ ? $C H_{3} C H_{2} C H_{2} B r \overset{N a C N}{\to}$ $X \to_{h e a t}^{H_{3} O^{+}} Y \to_{H^{+}}^{C H_{3} C H_{2} O H} Z$

1

\begin{matrix} O \\ | | \\ C H_{3} C H = C H C O H \end{matrix}

2

C H_{3} C H_{2} C H_{2} C H = N O C H_{2} C H_{3}

3

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

4

\begin{matrix} O \\ | | \\ C H_{3} C H_{2} C H_{2} C O C H_{2} C H_{3} \end{matrix}

Explanation:

$X = C H_{3} - C H_{2} - C H_{2} - C \equiv N$
$Y = C H_{3} - C H_{2} - C H_{2} - C O_{2} H$
$\begin{matrix} O \\ | | \\ Z = C H_{3} - C H_{2} - C H_{2} - C - O - E t \end{matrix}$
$Y \to Z$ is esterification reaction.

ALDEHYDES, KETONES AND CARBOXYLIC ACID

28401 Product $(A)$ of the reaction is

1

2

3

4

ALDEHYDES, KETONES AND CARBOXYLIC ACID

28402 $C H_{3} - C H = C H - C H_{2} - C O_{2} H \to_{Δ}^{} (X) (m a j o r)$ ; Product $(X)$ is

1

C H_{3} - C H = C H - C H_{3}

2

\begin{matrix} C H_{3} - C = C H_{2} \\ | \\ C H_{3} \end{matrix}

3

C H_{3} - C H_{2} - C H = C H_{2}

4

C H_{3} - C H = C H_{2}

ALDEHYDES, KETONES AND CARBOXYLIC ACID

28403 $\begin{matrix} O O \\ | | | | \\ H - O - C - {(C H_{2})}_{n} - C - O - H \to_{Δ}^{} p r o d u c t \end{matrix}$ ,At what value of $(n)$ given compound will not evolve $C O_{2}$ gas ?

1

5

2

4

3

2

4

1

Explanation:

$(n = 2)$
Succinic acid on heating form anhydride. 364-s213

ALDEHYDES, KETONES AND CARBOXYLIC ACID

28399 Which of the following undergoes decarboxylation most readily on being heated ?

1

2

3

4

Explanation:

$(d)$ $β$ keto acid will easily undergo de-carboxylation on heating.

ALDEHYDES, KETONES AND CARBOXYLIC ACID

28400 What is compound $Z$ ? $C H_{3} C H_{2} C H_{2} B r \overset{N a C N}{\to}$ $X \to_{h e a t}^{H_{3} O^{+}} Y \to_{H^{+}}^{C H_{3} C H_{2} O H} Z$

1

\begin{matrix} O \\ | | \\ C H_{3} C H = C H C O H \end{matrix}

2

C H_{3} C H_{2} C H_{2} C H = N O C H_{2} C H_{3}

3

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

4

\begin{matrix} O \\ | | \\ C H_{3} C H_{2} C H_{2} C O C H_{2} C H_{3} \end{matrix}

Explanation:

$X = C H_{3} - C H_{2} - C H_{2} - C \equiv N$
$Y = C H_{3} - C H_{2} - C H_{2} - C O_{2} H$
$\begin{matrix} O \\ | | \\ Z = C H_{3} - C H_{2} - C H_{2} - C - O - E t \end{matrix}$
$Y \to Z$ is esterification reaction.

ALDEHYDES, KETONES AND CARBOXYLIC ACID

28401 Product $(A)$ of the reaction is

1

2

3

4

ALDEHYDES, KETONES AND CARBOXYLIC ACID

28402 $C H_{3} - C H = C H - C H_{2} - C O_{2} H \to_{Δ}^{} (X) (m a j o r)$ ; Product $(X)$ is

1

C H_{3} - C H = C H - C H_{3}

2

\begin{matrix} C H_{3} - C = C H_{2} \\ | \\ C H_{3} \end{matrix}

3

C H_{3} - C H_{2} - C H = C H_{2}

4

C H_{3} - C H = C H_{2}

ALDEHYDES, KETONES AND CARBOXYLIC ACID

28403 $\begin{matrix} O O \\ | | | | \\ H - O - C - {(C H_{2})}_{n} - C - O - H \to_{Δ}^{} p r o d u c t \end{matrix}$ ,At what value of $(n)$ given compound will not evolve $C O_{2}$ gas ?

1

5

2

4

3

2

4

1

Explanation:

$(n = 2)$
Succinic acid on heating form anhydride. 364-s213