1.

Theleast soluble compound (salt)of the following is

Answer»

`CSCL(K_(sp)=10^(-12))`
` HgS(K_(sp)=1xx 10^(-52))`
` PbCl_2 (K_(sp)=1.7xx 10^(-5))`
` ZNS (K_(sp)=1.2 xx 10^(-23))`

Solution :Salt with LOW S is LEAST soluble


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