Bright Tutorials Bright Tutorials
CBSE Class 10 Science Question 30 of 60

Solved 2022 Term 1 Question Paper CBSE Class 10 Science — Question 6

Back to all questions
6
Question

Question 30

Which of the following salts do not have the water of crystallisation?

(i) Bleaching Powder

(ii) Plaster of Paris

(iii) Washing soda

(iv) Baking soda

  1. (ii) and (iv)
  2. (i) and (iii)
  3. (ii) and (iii)
  4. (i) and (iv)
Answer

(i) and (iv)

Reason — Bleaching Powder [CaOCl2] and baking soda [NaHCO3] do not have water of crystallization whereas plaster of Paris [CaSO4.12\dfrac{1}{2} H2O] and washing soda [Na2CO3.10H2O] have.