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Assertion: ""2X^(A) undergoes 2 alpha-de...

Assertion: `""_2X^(A)` undergoes 2 `alpha`-decay and the daughter product is `""_(z-4)Y^(A-8)`
Reason: In `alpha`-decay the mass number decreases by 4 and atomic number decreases by 2.

A

If both the assertion and the reason are true and the reason is the correct explanation of the assertion.

B

If both the assertion and the reason are true, but the reason is not the correct explanation of the assertion

C

If Assertion is true, but the reason is false.

D

If Assertion is false, but the reason is true.

Text Solution

Verified by Experts

The correct Answer is:
1
Explanation: `""_(Z)X^(A) to ""_(Z-2)Y^(A-4)+ ""_(2)He^(4)(alpha "decay")`
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