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Solution


Q.

Which of the following are the example of double salt

(A) FeSO4.(NH4)2SO4.6H2O

(B) CuSO4.4NH3.H2O

(C) K2SO4.Al2(SO4)3.24H2O

(D) Fe(CN)2.4KCN

Choose the correct answer                              [2023]
1 A and B only  
2 A, B and D only  
3 A and C only  
4 B and D only  

Ans.

(3)

FeSO4.(NH4)2SO4.6H2O,K2SO4.Al2(SO4)3.24H2O are examples of double salts.