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An atom ‘A’ belongs to III A group and another atom “B” belongs to VI A group. The formula of the compound formed is 1) A3 B6 2) A2 B 3) A2 B3 4) A3 B2 |
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Answer» 3) A2 B3 A (group IIIA) ⇒ valency = 3 B (group VIA) ⇒ valency = 2 Possible compound: A2 B3 Ex. Al2 O3 |
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