Question

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Why does an aqueous solution of an acid conduct electricity?
Why does dry HCl gas not change the colour of the dry litmus paper?
While diluting an acid, why is it recommended that the acid should be
and not water to the acid?
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Answer 1

Answer:

An aqueous solution of acid produces ions and therefore, it conducts electricity. ... SOLUTION: Dry HCl gas does not show acidic character due to absence of H+ ions and therefore, does not change the colour of the dry litmus paper

Explanation:

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Answer 2

Answer:

1. becz aqes sol of acids have free ions which promotes flow of electricity

2.becz of absence of H+ or H3O+ ions

3. becz dilution is a highly exothermic reaction and, pouring acid in water will make water absorb the heat as, water is a natural coolant