Four solutions of pH 7, 2, 8.5 and 13 respectively were each reacted with calcium turnings. Identify two solutions in which hydrogen gas would be...

Four solutions of pH 7, 2, 8.5 and 13 respectively were each reacted with calcium turnings. Identify two solutions in which hydrogen gas would be produced. Explain each case.

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(i) pH 7 it is water that reacts with calcium to form calcium hydroxide and hydrogen //Ca is
above hydrogen in reactivity series.
(ii) pH 2- It is acidic solution from which hydrogen can be displaced by a more reactive metal
Ca.

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sharon kalunda answered the question on March 29, 2019 at 10:30

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