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Lewis Theory

The acidic so...

Question

The acidic solution of a salt produced a deep blue colour with starch iodide solution.The salt may contain:

A

chloride ion

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B

chlorine

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C

bromide

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D

niride

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Solution

The correct option is D niride
Nitrites give reddish-brown fumes of $N O_{2}$ when treated with dilute $H_{2} S O_{4}$ . These fumes cause a solution of potassium iodide $K I$ and starch to turn blue.

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