41) Arrange the following steps in a sequence for the manufacture of common salt.
41) Arrange the following steps in a sequence for the manufacture of common salt.
The correct option is A 25413
Explanation for the correct option -
(A) The manufacture of common salt takes place in the following sequence:
(2) Evaporation of water - The sea water is evaporated by heating.
(5) Formation of crude salt - After heating, a concentrated salt is obtained known as crude salt.
(4) Dissolution in water - The crude salt obtained is impure hence it is dissolved in water and again evaporated to obtain the pure crystal.
(1) Recrystallisation - The crude salt after removing impurity in order to obtain pure crystal is known as recrystallization.
(3) Addition of Sodium iodide and Potassium iodide - The crude salt contains only sodium chloride, hence Potassium iodide and Sodium iodide is added to it, to help prevent the deficiency of iodine.
Hence option ‘A’ is the correct choice for the sequence of the manufacture of common salt.
25413
Explanation for the correct option -
(A) The manufacture of common salt takes place in the following sequence:
(2) Evaporation of water - The sea water is evaporated by heating.
(5) Formation of crude salt - After heating, a concentrated salt is obtained known as crude salt.
(4) Dissolution in water - The crude salt obtained is impure hence it is dissolved in water and again evaporated to obtain the pure crystal.
(1) Recrystallisation - The crude salt after removing impurity in order to obtain pure crystal is known as recrystallization.
(3) Addition of Sodium iodide and Potassium iodide - The crude salt contains only sodium chloride, hence Potassium iodide and Sodium iodide is added to it, to help prevent the deficiency of iodine.
Hence option ‘A’ is the correct choice for the sequence of the manufacture of common salt.
