SATHEE: P-Block Elements Ques 393

P-Block Elements Ques 393

Question: ${(N H_{4})}_{2} C r_{2} O_{7}$ on heating liberates a gas. The same gas will be obtained by

[IIT JEE (Screening) 2004; BVP 2004]

Options:

A) Heating $N H_{4} N O_{2}$

B) Heating $N H_{4} N O_{3}$

C) Treating $H_{2} O_{2}$ with $N a N O_{2}$

D) Treating $M g_{3} N_{2}$ with $H_{2} O$

Show Answer

Answer:

Correct Answer: A

Solution:

${(N H_{4})}_{2} C r_{2} O_{7} \overset{Δ}{\to} N_{2} ↑ + C r_{2} O_{3} + 4 H_{2} O$ $N H_{4} N O_{2} \overset{Δ}{\to} N_{2} ↑ + 2 H_{2} O$

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P-Block Elements Ques 393

Question: (NH4)2Cr2O7 on heating liberates a gas. The same gas will be obtained by

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Question: ${(N H_{4})}_{2} C r_{2} O_{7}$ on heating liberates a gas. The same gas will be obtained by