question_answer

Assertion (A) Elementary     phosphorus exists in three principal allotropic forms, i.e. white (or yellow), red (or violet) and black. Reason (R) of the three forms, white phosphorus is the most important and most reactive. Each of these questions contains two statements. Assertion (A) and Reason (R). Each of these questions also has four alternative choices, only one of which is the correct answer. You have to select one of the codes (a), (b), (c) and (d) given below.

A) If both Assertion and Reason are true and Reason is correct explanation of Assertion.

B) If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.

C) If Assertion is true but Reason is false.

D) If both Assertion and Reason are false.