Friday, 11 July 2025

Important Questions – Acids, Bases and Salts



📘 Important Questions – Acids, Bases and Salts

📚 Class 10 Science

  1. Why do acids not show acidic behaviour in the absence of water?

  2. What is the chemical name and formula of baking soda? Mention its one use

  3. Why does dry HCl gas not change the colour of dry litmus paper, but wet HCl does?

  4. How is plaster of Paris prepared? Write the balanced chemical equation.

  5. A solution turns red litmus blue. Its pH is likely to be: 6, 7, 8, or 4? Give reason.