1.

Which of the following ions would have the minimum coagulating value for sol obtained on peptizing Sn(OH)_(4) by little NaOH solution.

Answer»

`Cl^(-)`
`SO_(4)^(2-)`
`k^(+)`
`Ba^(2+)`

Solution :Minimum coagulating VALUE will be for the ION with maximum charge and since the SOL particles are NEGATIVELY charged, hence positively charged are REQUIRED for coagulations.


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