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Q.
The three elements X, Y and Z with electronic configurations shown below all form hydrides:
Element Electronic configuration
X 1s22s22p2
Y 1s22s22p63s1
Z 1s22s22p63s23p63d10 4s2 4p5
Which set of properties match correctly with properties of the hydrides of these elements:
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a
Hydride of X Hydride of Y Hydride of Z
Non-polar compound Silver/grey ionic solid Forms when water is
reacts with Cl2 in light with formulaYH2 added to phosphorus and
elemental Z.
b
Hydride of X Hydride of Y Hydride of Z
Colourless gas which Silver/grey solid which Colourless, corrosive
burns with air reacts violently with liquid at STP
acids
c
Hydride of X Hydride of Y Hydride of Z
Colourless gas insoluble Silver/grey solid reacts Colourless gas forms a
in H2O with H2O to form an strong acid in H2O
alkali
d
Hydride of X Hydride of Y Hydride of Z
Colourless liquid, no Silver/grey solid forms Ionic solid with formula
reaction with H2O H2 and H2O ZH
answer is A.
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Detailed Solution
X =CH4, Y =NaH, Z =HBr