Question 6 - MCQs from NCERT Exemplar - Chapter 3 Class 10 - Metals and Non-Metals

Last updated at July 19, 2026 by

What happens when calcium is treated with water?

(i) It does not react with water (ii) It reacts violently with water

(iii) It reacts less violently with water (iv) Bubbles of hydrogen gas formed stick to the surface of calcium

(i) (i) and (iv) 

(ii) (ii) and (iii)

(iii) (i) and (ii) 

(iv) (iii) and (iv)

 

Answer

  • Calcium is a highly reactive metal so it reacts very violently with water.
  • As it reacts, it displaces hydrogen from water.
  • During the reaction, bubbles of hydrogen gas are produced.

The reaction is given below:

Reaction of Calcium with Water - Teachoo.png

                                

So, the correct answer is (d) (iii) and (iv)

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