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Zinc Ion

NaOH reacts w...

Question

$N a O H$ reacts with excess $S$ to give :

A

N a_{2} S

,

N a_{2} S_{2} O_{3}

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B

N a_{2} S_{5}

,

N a_{2} S O_{4}

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C

N a_{2} S_{5}

,

N a_{2} S_{2} O_{3}

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D

N a_{2} S O_{3}

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Solution

The correct option is A $N a_{2} S$ , $N a_{2} S_{2} O_{3}$
Sodium hydroxide reacts with excess sulphur to form sodium thiosulphate and sodium sulphide.
$4 S + 6 N a O H \to N a_{2} S_{2} O_{3} + 2 N a_{2} S + 3 H_{2} O$

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