Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : Boron is unable to form BF_ 6 ^ 3- . Reason (R) : Size of B is very small. In the light of the above statements, choose the correct answer from the options given below:

JEE Main 2022 Chemistry question

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : Boron is unable to form . Reason (R) : Size of B is very small. In the light of the above statements, choose the correct answer from the options given below:

(1)Both (A) and (R) are true and (R) is the correct explanation of (A)
(2)Both (A) and (R) are true but (R) is not the correct explanation of (A)Correct
(3)(A) is true but (R) is false
(4)(A) is false but (R) is true

Answer: (2)

Solution

The outermost shell of boron has n = 2 and its maximum covalency is 4 (no d orbitals are available), so boron cannot form and the assertion is correct. Boron is the

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Question ID VK-034303