Assertion: Boron and silicon exhibit a diagonal relationship.
Reason: Boron and silicon have similar atomic radii.
Both assertion and reason are true, and the reason is the correct explanation of the assertion.
Both assertion and reason are true, but the reason is not the correct explanation of the assertion.
The assertion is true, but the reason is false.
The assertion is false, but the reason is true.
The Assertion is true because Boron and Silicon exhibit a diagonal relationship due to their similar properties, which arises due to the similarity in their atomic size and electronic configuration. The Reasoning is also true because both boron and silicon have similar atomic radii and valence electrons. Hence option A is the correct answer.
Option(2) Both assertion and reason are true and the reason explains assertion correctly. Hence option 2 is incorrect.
Option(3) Both assertion and reason are true. Hence option 3 is incorrect.
Option(4) Both assertion and reason are true. Hence option 4 is incorrect.