Assertion : Z X A undergoes 2α–decays. 2β–decays and 2γ–decays and the daughter product…
Physics · JEE Advanced · NTA Exams — Atoms and Nuclei
Assertion : ZXA undergoes 2α–decays. 2β–decays and 2γ–decays and the daughter product is Z–2YA–8.
Reason : In α–decay the mass number decreases by 4 and atomic number decreases by 2 . In β–decay the mass number remains unchanged, but atomic number increases by 1 only.
Reason : In α–decay the mass number decreases by 4 and atomic number decreases by 2 . In β–decay the mass number remains unchanged, but atomic number increases by 1 only.
- If both assertion and reason are true and the reason is the correct explanation of the assertion.
- If both assertion and reason are true but reason is not the correct explanation of the assertion.
- If assertion is true but reason is false.
- If the assertion and reason both are false.
Answer
(A) If both assertion and reason are true and the reason is the correct explanation of the assertion.
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