Which of the following reactions will give - - hydroxy acid as a product-

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Synthesis of Aldehydes and Ketones Using Carboxylic Acid and Its Derivatives

Which of the ...

Question

Which of the following reactions will give $α -$ hydroxy acid as a product?

C H_{3} - C H O (i) N a C N / H C l - -------- \to (i i) H_{2} O / H^{\oplus} / Δ

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C H_{3} - C H O + B r - C H_{2} - C O O C_{2} H_{5} (i) Z n - ---------- \to \begin{matrix} (i i) N H_{4} C l / H O H (i i i) H O H / H^{\oplus} / Δ \end{matrix}

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C H_{3} - C O O H N a O H / H O H - ------- \to

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Solution

The correct option is A $C H_{3} - C H O (i) N a C N / H C l - -------- \to (i i) H_{2} O / H^{\oplus} / Δ$
Treatment of acetaldehyde with sodium cyanide in presence of HCl gives acetaldhyde cyanohydrin.
This is followed by hydrolysis of cyano group in presence of acid to form hydroxy acid as a product which is 2-hydroxy propanoic acid.

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Similar questions

Q. Write IUPAC names of the following

@CH3-CH2-CH=CH2
@CH3-CH2-CH2-C(CH3)2-CH3
@CH3-CH2-CHO
@CH3-CH(OH)-CH3
@CH3-CH2-CH2-COOH

Functional isomer of $C H_{3} - C H_{2} - O H$ is:

Q. Name the functional groups present in the following compounds.
(i)

{C H}_{2} - C O - C H_{2} - {C H}_{2} - {C H}_{2} - {C H}_{3}

(ii)

{C H}_{3} - C H_{2} - {C H}_{2} - C O O H

(iii)

{C H}_{3} {- C H}_{2} - {C H}_{2} - {C H}_{2} - C H O

(iv)

{C H}_{3} - {C H}_{2} - O H

Name the functional groups present in the following compounds: [5 MARKS]

1. ${CH}_{3} - {CH}_{2} - {CH}_{2} - OH$
2. ${CH}_{3} - {CH}_{2} - {CH}_{2} - COOH$
3. ${CH}_{3} - {CH}_{2} - CHO$
4. ${CH}_{3} - CO - {CH}_{2} - {CH}_{3}$
5. ${CH}_{3} - {CH}_{2} - CO-OH$

Q. Which of the following reagents convert the acid chloride into aldehyde?

C H_{3} - C H_{2} - C H_{2} - C O - C l \to C H_{3} - C H_{2} - C H_{2} - C H O

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Which of the following reactions will give α− hydroxy acid as a product?

Which of the following reactions will give $α -$ hydroxy acid as a product?