Based on the following information arrange four metals `A,B,C` and `D` in order of decreasing ability to act as reducing agents `:` `(I)` Only A,B, and C react with `1M HCl` to give `H_(2)(g)` `(II)` When C is added to solutions of the other metal ions, metallic B and D are formed `(III)` Metal C dows not reduced `A^(n+)`
A
`CgtAgtBgtD`
B
`CgtAgtDgtB`
C
`AgtCgtDgtB`
D
`AgtCgtBgtD`
Text Solution
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The correct Answer is:
D
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