Question

(a) Assertion (A): The blue colour of coppersulphate crystals changes on heating.

Reason (R): On heating blue colour copper sulphate crystals turn white due to the loss

of water of crystallization.

(b) Assertion (A): Zinc reacts with dilute sulphuric acid to evolve hydrogen gas.

Reason (R): zinc is less reactive than hydrogen.​

Answer 1

Answer:

a) A and R are true nd R is correct explanation of A

b) A is true but R is false

Explanation:

b) Zinc is more reactive than Hydrogen

Answer 2

Answer:

(a) Assertion (A): The blue colour of coppersulphate crystals changes on heating.

Reason (R): On heating blue colour copper sulphate crystals turn white due to the loss

of water of crystallization.

Answer - Both Assertion and Reason is right and Reason is the correct explanation of Assertion.

(b) Assertion (A): Zinc reacts with dilute sulphuric acid to evolve hydrogen gas.

Reason (R): zinc is less reactive than hydrogen.

Answer - Assertion is true Reason is false

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