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Question 28 W...

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Question 28
Which of the following represents saponification reaction?
(a) $C H_{3} C O O N a + N a O H C a O - - \to C H_{4} + N a_{2} C O_{3}$
(b) $C H_{3} C O O H + C_{2} H_{5} O H H_{2} S O_{4} - --- \to C H_{3} C O O C_{2} H_{5} + H_{2} O$
(c) $2 C H_{3} C O O H + 2 N a \to 2 C H_{3} C O O N a + H_{2}$
(d) $C H_{3} C O O C_{2} H_{5} + N a O H \to C H_{3} C O O N a + C_{2} H_{5} O H$

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Solution

The answer is (d) $C H_{3} C O O C_{2} H_{5} + N a O H \to C H_{3} C O O N a + C_{2} H_{5} O H$
Saponification is a process that involves hydrolysis of fats or oils also known as triglycerides ( a long chain of esters) by an alkali with the formation of soap (sodium salt of carboxylic acid) and glycerol.

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Q. Question 28
Which of the following represents saponification reaction?
(a)

C H_{3} C O O N a + N a O H C a O - - \to C H_{4} + N a_{2} C O_{3}

C H_{3} C O O H + C_{2} H_{5} O H H_{2} S O_{4} - --- \to C H_{3} C O O C_{2} H_{5} + H_{2} O

2 C H_{3} C O O H + 2 N a \to 2 C H_{3} C O O N a + H_{2}

C H_{3} C O O C_{2} H_{5} + N a O H \to C H_{3} C O O N a + C_{2} H_{5} O H

Q. Read the following reaction
(i)

C H_{3} C O O N a + N a O H C a O - - \to C H_{4} + N a_{2} C O_{3}

C H_{3} C O O N a + C_{2} H_{5} O H A c i d - - \to C H_{3} C O O C_{2} H_{5} + H_{2} O

C H_{3} C O O C_{2} H_{5} + N a O H ⟶ C H_{3} C O O N a + C_{2} H_{5} O H

2 C H_{3} C O O H + 2 N a ⟶ 2 C H_{3} C O O N a + H_{2}

Which of the above represents(s) esterification reaction?

Q. The reaction,

C H_{3} C O O C_{2} H_{5} + N a O H \to C H_{3} C O O N a + C_{2} H_{5} O H

What are the products of the reaction, $C H_{3} C O O H + N a_{2} C O_{3} \to$ ?

Q. The rate of the reaction:

C H_{3} C O O C_{2} H_{5} + N a O H \to C H_{3} C O O N a + C_{2} H_{5} O H

is given by the equation,

r a t e = k [C H_{3} C O O C_{2} H_{5}] [N a O H]

If concentration is expressed in

m o l / L

k

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