Question

34. (1) Name ihe cas evolved when sodium hydrogencarbonate reas with our proche How as
presence of this gas? (2) A substance Y, which is an oxide of a metal is used extensively in the cement industry. The
element present in the substance X is an important constituent of our bones. On treatment with water, it forms a
solution which turns red litmus blue. Identify 'X' and also write the equation for its chemical reaction with water.
(3) Why is concentrated add added to water and not water to concentrated acid to make dilute solution of acid?
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Answer 1

Answer:

Hi

Explanation:

reaction with water.

(3) Why is concentrated add added to water and not water to concentrated acid to make dilute solution of acid?