Question

Assertion: Water and carbon dioxide are known as compounds. Reason: Water and carbon di oxide is heterogeneous in nature.
(a) Both A and R are true and R is correct explanation of the A.

(b) Both A and R are true, but R is not the correct explanation of the A.

(c) A is true, but R is false.

(d) A is false, but R is true.​

Answer 1

Answer:

(c) A is true, but R is false.

Explanation:

Because Water and carbon dioxide are compounds and Water and carbon dioxide is not heterogeneous in nature.

Answer 2

(c) A is true, but R is false.

• Water and carbon dioxide both are compounds as they are formed in fixed ratio of elements and cannot be broken down into simpler units by physical means.
• Water is formed in fixed ratio of 1:8 of hydrogen and oxygen respectively. Carbon dioxide is formed in fixed ratio of 3:8 of carbon and oxygen respectively. Hence, given Assertion is true.
• Water and carbon dioxide are compounds that is they are pure substances. Hence, they cannot be classified as heterogeneous mixtures. Therefore, given reason is incorrect.
• Hence, (c) A is true, but R is false.