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How many stages is the ‘salt cake’ method performed in?

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in Chemistry – Class 12 by (188k points)
How many stages is the ‘salt cake’ method performed in?

(a) 1

(b) 3

(c) 2

(d) 4

This question was posed to me in an online interview.

My doubt is from P-Block Elements in portion P-Block Elements of Chemistry – Class 12

1 Answer

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Best answer
Right option is (c) 2

The explanation: The ‘salt cake’ method is an endothermic reaction. It is performed in two stages. The first stage involves the reaction between rock salt and sulphuric acid at 420K and in the second stage, the product of the first stage is heated to a temperature of 823K so that it further reacts with sulphuric acid.

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