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Basic Oxides of Metals

A substance X...

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Question 32
A substance X, which is an oxide of a group 2 element, is used intensively in the cement industry. This element is present in bones also. On treatment with water, it forms a solution which turns red litmus blue. Identify X and also write the chemical reactions involved.

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Solution

X is calcium oxide. The reaction involved is:

$CaO(s) + H_{2} O(l) \to {Ca(OH)}_{2} (aq)$

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Standard X Chemistry

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