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QNEET-2013-Ch-1461: NEET 2013 Chemistry - Class 11 NEET-2013-Ch-1461 Solution: Identify the correct order of solubility in aqueous medium.…
Identify the correct order of solubility in aqueous medium.
Multiple Choice Options
- A Na 2 S > CuS > ZnS
- B Na 2 S > ZnS > CuS
- C Cus > ZnS > Na 2 S
- D ZnS > Na 2 S > CuS
Step-by-Step Verified Solution
Water is a polar compound so the salt which
is more polar or having more ionic character will
be more soluble in it. According to Fajan's rule,
ionic character of compound increases with
increase in the size of cation. Now, among the given
compounds, the size of cations are in the order as
follows :
Na + > Zn 2+ > Cu 2+
Thus, the order of ionic character and the solubility
order in aqueous medium is as follows :
Na 2 S > ZnS > CuS