Question

Assertion: Lower value of binding energy per nucleon indicates greater stability.
Reason : Binding energy per nucleon of `._(3)Li^(7)` is greater than that of `._(2)He^(4)`. Hence `._(3)Li^(7)` is less stable than `._(2)He^(4)`.
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 true but Reason is not a correct explanation of the Assertion.
C. If Assertion is true but the Reason is false.
D. If both Assertion and Reason are false.

Answer 1

Correct Answer - D
Assertion and the Reason, both are false. Lower value of binding energy per nucleon indicates lesser stability. Binding energy per nucleon of `._(3)Li^(7)` is lesser than that of `._(2)He^(4) :. ._(3)Li^(7)` is less stable then `._(2)He^(4)`