Which of the following is formed in the first stage of the ‘salt cake’ method?(a) Sodium sulphate(b) Sodium bisulphate(c) Sodium Chloride(d) HydrogenThis question was posed to me in homework.I'm obligated to ask this question of P-Block Elements in portion P-Block Elements of Chemistry – Class 12

Which of the following is formed in the first stage of the ‘salt cak

1.	Which of the following is formed in the first stage of the ‘salt cake’ method?(a) Sodium sulphate(b) Sodium bisulphate(c) Sodium Chloride(d) HydrogenThis question was posed to me in homework.I'm obligated to ask this question of P-Block Elements in portion P-Block Elements of Chemistry – Class 12
Answer» CORRECT answer is (b) Sodium bisulphate Easiest explanation: In the first stage of the ‘salt cake’ method, solid sodium chloride reacts with concentrated sulphuric ACID at 420K and gets coated with insoluble sodium bisulphate. This prevents further reaction and HENCE, the name ‘salt cake’ was GIVEN to this method.

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