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Question
Match the species given in Column I with the properties mentioned in Column II.
| Column I | Column II |
| (i) \[\ce{BF^{-}4}\] | (a) Oxidation state of central atom is +4 |
| (ii) AICI3 | (b) Strong oxidising agent |
| (iii) SnO | (c) Lewis acid |
| (iv) PbO2 | (d) Can be further oxidised |
| (e) Tetrahedral shape |
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Solution
| Column I | Column II |
| (i) \[\ce{BF^{-}4}\] | (e) Tetrahedral shape |
| (ii) AICI3 | (c) Lewis acid |
| (iii) SnO | (d) Can be further oxidised |
| (iv) PbO2 | (b) Strong oxidising agent |
Explanation:
(i) \[\ce{BF^{-}4}\]: Tetrahedral shape, sp3 hybridisation, regular geometry.
(ii) AlCl3: Octet of Al not complete, acts as Lewis acid.
(iii) SnO: Sn2+ can show +4 oxidation state.
(iv) PbO2: Due to inert pair effect, Pb4+ is less stable than Pb2+ and hence acts as strong oxidising agent.
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