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(a) I only (b) I and II only ( I and III only (a) I, II and II 27. Which of the following aqueous solution produces metal after electrolysis ? (a) KC1207 (b) KMnO (C) CH COONa (d) CuCl2 28. How much time is required for complete decomposition of 4 moles of water using 4 ampere 39 5

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