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Question

It has d2sp2 hybridisation. (NH4)2Cr2O7 on heating gives a gas /vapour, which is also produced in significant quantity by:
(I) heating NH4Cl
(II) heating CuSO45H2O
(III) heating Ba(N3)2
(IV) treating NaNO3 with Zn in basic medium.

A
Only III
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B
I , IV
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C
Only IV
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D
II, III
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Solution

The correct option is B Only III
(NH4)2Cr2O7 gives N2 gas on heating, similarly
Ba(N3)2Ba+3N2
(A) only III.

1173124_1245041_ans_8635b0949e91462f80fcb3f38862de28.jpg

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