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  4. Which of the following are the example of double salt? A. FeSO 4 .( NH 4)2 SO 4 ⋅ 6 H 2 O B. CuSO 4 .4 NH 3 .H 2 O C. K 2 SO 4 ⋅ Al 2( SO 4)3 ⋅ 24 H 2 O D. Fe ( CN )2 ⋅ 4 KCN Choose the correct answer

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Q. Which of the following are the example of double salt?
A. $FeSO _4 .\left( NH _4\right)_2 SO _4 \cdot 6 H _2 O$
B. $CuSO _4 .4 NH _3 .H _2 O$
C. $K _2 SO _4 \cdot Al _2\left( SO _4\right)_3 \cdot 24 H _2 O$
D. $Fe ( CN )_2 \cdot 4 KCN$
Choose the correct answer

JEE MainJEE Main 2023Coordination Compounds

Solution:

Double salt contain's two or more types of salts. $CuSO _4 \cdot 4 NH _3 \cdot H _2 O$ and $Fe ( CN )_2 .4 KCN$ are complex compounds.