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

Calcium oxide:
Calcium is a group $2$ element and one of the oxides is Calcium oxide commonly known as quick lime with the chemical formula $CaO$
It is an important ingredient in process of cement.
Calcium oxide reacts with water to form Calcium hydroxide which is a strong base and turns red litmus blue.
$\underset{Calcium oxide}{CaO (s)} + \underset{water}{H_{2} O (l)} \to \underset{Calcium hydroxide}{Ca {(OH)}_{2} (aq)}$
Therefore, the compound “X” is calcium oxide( $CaO$ ).

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Q. 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.

A substances 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 reaction involved.

Q. A substance

X

which is an oxide of a group element is used intensively in the cement industry. This element is also present in bones. On treatment with water, it forms a solution which turns red litmus blue. What is

X

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