Question

A) If both assertion and reason are true and reason is the correct explanation for
assertion.

(B) If both assertion and reason are true but reason is not the correct explanation for
assertion.

(C) If assertion is true but reason is not a true statement.

(D) If assertion is false but reason is a true statement.

(E) If both assertion and reason are false

21. Assertion- When CO2 gas is passed through lime water, a white precipitate is initially
formed

Reason - White precipitate is of calcium carbonate which is formed during the reactionreaction. ​

Answer 1

Answer:

A

The procedure in nature by which, as indicated by Darwin's hypothesis of advancement, just the living beings best adjusted to their condition will, in general, endure and transmit their hereditary characters in expanding numbers to succeeding ages while those less adjusted will, in general, be killed.

So, the correct option is 'Assertion and reason are true and the reason is a correct explanation'.