Question

Classify the following as physical and chemical changes :
(i) Cleaning with soap and water.
(ii) Curdling of milk
(iii) Formation of clouds
(iv) Making ice candy

• A. Physical change - (i), (iii), (iv); chemical change- (ii)
• B.
  Physical change - (i), (iii); chemical change -(ii), (iv)
• C. Physical change - (i), (ii), chemical change- (iii), (iv)
• D. Physical change - (i), (ii), (iii); chemical change- (iv)

Answer 1

The correct option is A Physical change - (i), (iii), (iv); chemical change- (ii)

Curdling of milk is a chemical change as it leads to the formation of curd. There is change in chemical composition and properties.