Q.

Elements of which of the following group(s) of periodic table don’t form hydrides?

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a

Groups – 3, 4, 5

b

Groups - 7, 8, 9

c

Group – 6 only

d

Groups – 16, 17, 18

answer is B.

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Detailed Solution

Hydride gap is observed in 7,8,9 groups of LPT                               Hence option (2) is correct.
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