JEE Main Chemistry question

Not in JEE Main or NEET syllabus

Statement 1: Hydrogen has three isotopes namely protium, deuterium and tritium. Statement 2: Tritium is radioactive in nature.

(A)Assertion is True, Reason is True; Reason is correct explanation for Assertion
(B)Assertion is True, Reason is True; Reason is not correct explanation for AssertionCorrect
(C)Assertion is True, Reason is False
(D)Assertion is False, Reason is True

Answer: (B)

Solution

Hydrogen has three naturally occurring isotopes — protium (H), deuterium (H) and tritium (H) — so Statement 1 is true. Of these, only tritium is radioactive, undergoing decay to He with a half-life of about 12.3 years, so Statement 2 is also true. However, the fact that tritium is

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Question ID VK-137235