Q3 of 53 Page 62

Write true or false for the following statements:

The process of dissolving an acid or a base in water is highly exothermic one.

True

The process of dissolving an acid or a base in water is highly exothermic one as a huge amount of heat is evolved during the process owing to the production of H+ or OH- ions.


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1

Write true or false for the following statements:

The separation of H+ ion from HCl molecules can occur in the absence of water.

 2

Write true or false for the following statements:

Acids give H3O+ or H+(aq) ion in water.

 4

Write true or false for the following statements:

Care must be taken while mixing concentrated nitric acid or sulphuric acid with water. The water must always be added slowly to the acid with constant stirring.

 5

Write true or false for the following statements:

Mixing an acid or base with water results in increase in the concentration of ions (H3O+/OH–) per unit volume.