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Question

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.


Solution

(a)  (ii) KNO3
(b) (ii) FeSO subscript 4
(c) (iii) NO subscript 2


Chemistry
Concise Chemistry
Standard X

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