Question

Read the assertion and reason carefully to mark the correct option in question.

Assertion: Uric acid can be removed with a minimum loss of water.

Reason: Uric acid is least toxic among the nitrogenous wastes.

• A. If both assertion and reason are true and the reason is the correct explanation of the assertion.
• B. If both assertion and reason are false.
• C. If both assertion and reason are true but reason is not the correct explanation of the assertion.
• D. If assertion is true but reason is false.

Answer 1

The correct option is A

If both assertion and reason are true and the reason is the correct explanation of the assertion.

Assertion-Reason relation

The nitrogenous compounds through which excess nitrogen is eliminated from organisms are called nitrogenous wastes.

Process of eliminating nitrogenous wastes in the form of uric acid from the body is called uricotelism. Uric acid is almost insoluble in water. It is also the least toxic one than other nitrogenous wastes like urea, ammonia. Therefore, it requires very less water for elimination from the body. It is expelled out of the body in the form of paste$/$ pellet.

Hence, both the assertion and the reason are correct. Also, the reason is the correct explanation of the assertion.

Final Answer:

$\left(A\right)$ If both assertion and reason are true and the reason is the correct explanation of the assertion.