NEET2001ChemistryChemical KineticsActual
Assertion : Hydrogen nuclei combines to form helium nuclei then energy is released. Reason : Binding energy/nucleon of He is greater than hydrogen.
Options
- AIf both Assertion and Reason are true and Reason is the correct explanation of Assertion.
- BIf both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
- CIf Assertion is true but Reason is false.
- DIf Assertion is false but Reason is true.
Correct answer
A. If both Assertion and Reason are true and Reason is the correct explanation of Assertion.
Step-by-step solution
Anuclear reaction in which two lighter nuclei are fused together to form a heavier nuclei is called nuclear fusion. In such a process, more stable nuclei come into existence i.e., binding energy per nucleon increases. Fusionreactionsarehighlyexothermicbecause of loss of mass during fusion. e.g. ₁^2 H + ₁^2 H ₂^4 He +24.9 MeV