Ethanoic acid and ethanol can be distinguished by litmus test as well as by sodium bicarbonate test.

True

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False

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Solution

The correct option is A True
Ethanol
1. It does not affect litmus paper.
2. It does not give brisk effervescence (release of $C O_{2}$ with $N a H C O_{3}$ (sodium bicarbonate)
3. It does not react with $N a O H$ (strong alkali)
Ethanoic acid
1. It turns blue litmus paper to red by producing $H^{+}$ ion
2. It produces $C O_{2}$ with Sod. bicarbonate as
$C H_{3} C O O H + N a H C O_{3} \to C H_{3} C O O N a + C O_{2} + H_{2} O_{3}$ .
It reacts with $N a O H$ to give salt and water as:
$C H_{3} C O O H + N a O H \to C H_{3} C O O N a + H_{2} O$

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N a H C O_{3}

C O_{2}

a .

- 2 -

- 3 -

b .

c .

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