Question

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Answer 1

Answer:

i) B Gains an electron, so it is a non metal and forms negatively charged ion. Now, a bond between a metal and non metal is always ionic. i) so nature of bond is ionic or electrovalent. ii) since a losses 2 electrons, its valency is +2 and valency of B is -1 since it Gains one electron.

ii) since A loses 2 electrons, its valency is +2 and valency of B is-1 since it gains one electron. on interchanging them, we get the formula, which is AB2.

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