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Reactivity with Halogens (Group 1)

Which compoun...

Question

Which compound on heating alone does not form $O_{2}$ ?

K C l O_{4}

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K M n O_{4}

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K N O_{3}

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N H_{4} N O_{2}

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Solution

The correct option is D $N H_{4} N O_{2}$
The reactions are-

$K C l O_{4} \to K C l O_{3} + \frac{1}{2} O_{2}$
$2 K M n O_{4} \to M n O_{2} + K_{2} M n O_{4} + O_{2}$
$K N O_{3} \to K N O_{2} + \frac{1}{2} O_{2}$
$N H_{4} N O_{2} \to N_{2} + 2 H_{2} O$

Here, $N H_{4} N O_{2}$ 0n heating gives no oxygen.

So, option $D$ is correct.

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