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Q.

Following data in kJ per mol is given for an elementThe correct option(s) is

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a

It has three valence electrons

b

It may belong to IIIA Group

c

It may form amphoteric oxide

d

It belongs to inert family

answer is A.

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Detailed Solution

Observe that the IE values jumps from IE3 to IE4. This means after removing 3 electrons, a stable configuration is established.
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