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When a metal rod M is dipped into an aqu...

When a metal rod M is dipped into an aqueous colourless concetrated solution of compound N, the solution turns light blue. Addition of aqueous NaCl to the blue solution gives a white precipitate O. Addition of aqueous `NH_3` dissolves O and gives an intense blue solution.
Q. The compound N is

A

`AgNO_3`

B

`Zn(NO_3)_2`

C

`Al(NO_3)_3`

D

`Ph(NO_3)_2`

Text Solution

Verified by Experts

The correct Answer is:
A
White ppt. of `O` Is of `AgCl`
Since, `AgNO_3` is completely soluble silver compound,
N is `AgNO_3`.
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