1.

The valency of `Cr` in the complex `[Cr(H_(2)O)_(4)Cl_(2)]^(+)`A. 1B. 3C. 5D. 6

Answer» Correct Answer - B
Let O.S. of Cr in `[Cr(H_(2)O)_(4)Cl_(2)]^(+) is x`
O.S. of `H_(2)O` = `0, O.S. of Cl = -1`
`:.x+4xx0+(-1)=+1`
x = `+3`


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