Q.

Manganese dioxide on heating with concentrated hydrochloric acid gives a greenish yellow gas, X. With excess of ammonia X gives Y and Z. Y and Z respectively are

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a

NH4I,NOCl

b

NH4Cl,N2

c

NH4F,N2

d

NCl3,HOCl

answer is D.

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Detailed Solution

MnO2+4HCl(conc.)MnCl2+Cl2(X)+2H2O

3Cl2+8NH3(excess)6NH4(Y)Cl+N2(Z)

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