InterviewSolution
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InterviewSolution
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(a) Choose the correct answer from the choices A,B,C and D:(i) The property which is characteristic of an electrovalent compound is that:A. it is easily vaporizedB. it has a high melting pointC. it is a weak electrolyte,D. it often exists as a liquid.(ii) When a metal atom becomes an ion:A. It loses electrons and is OxidizedB. It gains electrons and is reduced,C. It gains electrons and is oxidized,D. it loses electrons and is reduced.(b) Identify the following reactions as either oxidation or reduction:(i) O + 2e- → O2-(ii) K – e- → K+(iii) Fe3 + e- → Fe2+ |
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Answer» (a)(i) B (ii) A (b) (i) Reduction (ii) Oxidation (iii) Reduction |
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