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Question

Which of the following compounds does not give oxygen on heating ?


A

Hgo

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B

KMnO4

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C

KClO3

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D

(NH4)2Cr2O7

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Solution

The correct option is D

(NH4)2Cr2O7


(NH4)2Cr2O7ΔCr2O3+N2+H2O


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