1.

A galvanic cell is composed of two hydrogen electrodes one of which is a standard one. In which of the following solutions should the other electrode be immersed to get maximum emf ?

Answer»

0.1 M HCl
`0.1 M CH_(3)COOH`
`0.1 M H_(3)PO_(4)`
`0.1 M H_(2)SO_(4)`

Solution :(d) `0.1 M H_(3)PO_(3)` will liberate maximum `H^(+)` ions in solution.


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