Why there is not much fizz when sulphuric acid and calcium carbonate react with each other?

Salt formed is completely soluble

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Salt is not formed at all

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Salt formed is not very soluble

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C O_{2}

is not formed

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Solution

The correct option is C Salt formed is not very soluble
Using sulphuric acid and calcium carbonate, you don't get much of a fizz because the calcium sulphate salt formed, is not very soluble, and coats the remaining calcium carbonate inhibiting the reaction. This will happen with any reaction between an acid and a water insoluble reactant which forms an insoluble solid product.

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A metal carbonate is formed when dilute sulphuric acid reacts with calcium carbonate.

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K_{2} C r_{2} O_{7}

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