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X and Y are non mtals in which M shel...

X and Y are non mtals in which M shell is valence shell . Y is precedent to X . X shows uninegative valence . Identify the formulae of the compounds formed when X and Y react with divalent metal M.

A

`MX_(2), MY`

B

`MX, MY_(2)`

C

`M_(3)X, M_(2)Y_(3)`

D

`M_(2)X_(3),M_(2)Y_(2)`

Text Solution

Verified by Experts

The correct Answer is:
a
Electronic configuration of X is 2, 8, 7
Electronic configuration of Y is 2, 8, 6
`:.` Valencies of X and Y are 1 and 2, respectively.
`{:(M^(+2)X^(-), M^(+2) Y^(-2)),(MX^2,MY):}`
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