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The ratio of amounts of H(2)S needed to ...

The ratio of amounts of `H_(2)S` needed to precipitate all the metal ions from `100 ml` of `1 M AgNO_(3)` and `100 ml` of `1 M CuSO_(4)` will be

A

`1:2`

B

`2:1`

C

Zero

D

Infinity

Text Solution

Verified by Experts

The correct Answer is:
A
In acidic medium 2 molecules of `KMnO_(4)` gives 5 atoms of oxygen
`2KMnO_(4)+3H_(2)SO_(4) to K_(2)SO_(4)+2MnSO_(4)+3H_(2)O+5(O)`
`2xx158=(316xx8)/(80)=31.6`
So, equivalent wt. of `KMnO_(4)` in acidic medium is `=31.6`gm
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