Q.

 Which of the following are the example of double salt?
A) FeSO4,. (NH4)2 SO4.6H2O  
B) CuSO4,. 4NH3 H2O
C) K2SO4,. Al2(SO4)3 .24H2O  
D) FeCN2,.4KCN
Choose the correct answer
 

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a

B and D only

b

A and B only

c

A and C only

d

A, B and D only

answer is C.

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Detailed Solution

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FeSO4NH4SO4 6H2OMohr salt K2SO4Al2SO43-Potassium alum  Double salt

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