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Q.

H2,Li2,B2 each has bond order equal to 1 , the order of there stability is

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a

H2=Li2=B2

b

H2>Li2>B2

c

H2>B2>Li2

d

B2>Li2<H2

answer is C.

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Detailed Solution

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Li2 , B2  have two and four antibonding electrons, respectively. where as H2 has no antibonding electrons.

The lower the stability of the element, the higher will be the number of the antibonding electron.

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