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Question

Pure nitrogen is prepared in the laboratory by heating a mixture of:

A
NH4OH+NaCl
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B
NH4NO3+NaCl
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C
NH4Cl+NaOH
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D
NH4Cl+NaNO2
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Solution

The correct option is D NH4Cl+NaNO2
NH4Cl+NaNO2heatNH4NO2+NaCl
NH4NO2ΔN2+2H2O

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