1.

Choose the correct answer : (a) The nitrate salt which does not give a mixture of NO2 and O2 on heating is : (i) AgNO3, (ii) KNO3, (iii) Cu(NO3)3, (iv) Zn(NO3)2. (b) The chemical used in the brown ring test is : (i) CuSO4, (ii) FeSO4 (iii) Fe2(SO4)3 (iv) ZnSO4. (c) Lead nitrate decomposes on heating to give : (i) NO, (ii) N2O, (iii) NO2 (iv) N2O5.

Answer»

Choose the correct answer :

(a) The nitrate salt which does not give a mixture of NO2 and O2 on heating is :

(i) AgNO3, (ii) KNO3,

(iii) Cu(NO3)3, (iv) Zn(NO3)2.

(b) The chemical used in the brown ring test is :

(i) CuSO4, (ii) FeSO4

(iii) Fe2(SO4)3 (iv) ZnSO4.

(c) Lead nitrate decomposes on heating to give :

(i) NO, (ii) N2O,

(iii) NO2 (iv) N2O5.



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