Dr. Parul Srivastava Solutions for Chapter: Practice Test Paper - 2, Exercise 1: PRACTICE TEST PAPER - 2

What will be the $\mathrm{pH}$ of a basic solution?

If pH of solution changes from 3 to 4, the solution becomes

Which gas is evolved in the reaction of zinc metal and $\mathrm{NaOH}$?

Name the scientist who proposed Acid-Base theory.

Name the gas evolved when Zinc metal reacts with $\mathrm{HCl}$ acid.

What is the important property of an acid?

A blue litmus paper was first dipped in dilute $\mathrm{HCl}$  and then in dilute $\mathrm{NaOH}$ solution. It was observed that the colour of the litmus paper

Barium sulphate is