Which of the following are examples of double salt?
(A)
(B)
(C)
(D)

Question

Which of the following are examples of double salt?
(A) 
(B) 
(C) 
(D)

Canvas Classes · Accepted Answer

Strategy:
 A double salt is a combination of two stable salts that exists only in the solid state and dissociates into its constituent ions in aqueous solution. Complex salts retain their identity in solution.

Step 1: Analyze each substance
- (A) Mohr's salt:  dissociates completely into , , and . It is a double salt.
- (C) Potash alum:  dissociates into , , and . It is a double salt.
- (B) and (D) form stable coordination complexes in solution.

Step 2: Conclusion
Only A and C behave as double

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