Direction for: In each of the following questions a statement of Assertion is given followed by a corresponding statement of Reason just below it. Of the statements mark the correct answer as
Assertion: Nuclear binding energy per nucleon is in the order \[Na(OMe)\]. Reason: Binding energy per nucleon increase linearly with difference in number of neutrons and protons.A) If both assertion and reason are true and reason is not the 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.
Correct Answer: D
Solution :
Both assertion and reason are wrong. Binding energy is the amount of energy released when neutrons and protons add to make a nucleus. It depends on the mass defect. Binding energy divided by number of nucleons (i.e., protons + neutrons) is binding energy per nucleon and is direct measurement of stability of nucleus. Higher binding energy per nucleon higher is the stability. The order of binding energy is \[_{2}H{{e}^{4}}{{>}_{3}}L{{i}^{7}}{{>}_{4}}B{{e}^{9}}\]
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