Question

When benzaldehyde is treated with hcn followed by hydrolysis it yields?

Answer 1

benzaldehyde on treating with HCN forms C6H5-CH(OH)-CN

When C6H5CH(OH)-CN on hydrolysis gives

C6H5CH(OH)COOH

Answer 2

When benzaldehyde is treated with HCN followed by hydrolysis it yields a acid called Mandelic acid.

Explanation:

• The compounds involved as reactants in the chemical reaction are as follows:

1. Benzaldehyde - $C_6H_5CHO$
2. Hydrogen cyanide - HCN

• When benzaldehyde is treated with hydrogen cyanide it yields a product called Mandelonitrile.
• The chemical equation involved in the reaction is as follows:

$C_{6} H_{5} C H O \stackrel{H C N}{\longrightarrow} C_{6} H_{5} C H(O H)-C N$

• The nitrile compound upon hydrolysis leads to the formation of acid called Mandelic acid.

$C_{6} H_{5} C H(O H)-C N \stackrel{H_{2} O / H y d r o l y s i s}{\longrightarrow} C_{6} H_{5} C H(O H) C O O H$

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