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The three elements X,Y and Z with electr...

The three elements X,Y and Z with electronic configuration shown below al form hydrides:
`{:("Element","Electronic configuration"),(X,1s^(2)2s^(2)2p^(2)),(Y,1s^(2)2s^(2)2p^(6)3s^(1)),(Z,1s^(2)2s^(2)2p^(6)3s^(2)3p^(6)3d^(10)4s^(2)4p^(5)):}`
Which set of properties match correctly with properties of the hydrides of these elements:

A

Hydride of X- Colourless gas insoluble in `H_(2)O`, Hydride of Y-Silver/grey solid reacts with `H_(2)O` to form an alkali
Hydride of Z-Colourless gas forms a strong acid in `H_(2)O`

B

Hydride of X-Colourless liquid, no reaction with `H_(2)O`, Hydride of Y-Silver/grey solid forms `H_(2) and H_(2)O`, Hydride of Z-Ionic solid with formula ZH

C

Hydride of X-Non-polar compound reacts with `Cl_(2)` in light, Hydride of Y-Silver/grey ionic solid with formula `YH_(2)`,Hydride of Z-Forms when water is added to phosphorus and elemental Z.

D

Hydride of X-Colourless gas which burns with air, Hydride of Y-Silver/grey solid which reacts violently with acids, Hydride of Z-Colourless, corrosive liquid at STP

Text Solution

Verified by Experts

The correct Answer is:
A
`X=CH_(4),Y=NaH,Z=HBr`
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