MCQ
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.

  • A
    Both $(A)$ and $(R)$ are true and $(R)$ is the correct explanation of $(A)$
  • Both $(A)$ and $(R)$ are true but $(R)$ is not the correct explanation of $(A)$
  • C
    $(A)$ is true but $(R)$ is false
  • D
    $(A)$ is false but $(R)$ is true

Answer

Correct option: B.
Both $(A)$ and $(R)$ are true but $(R)$ is not the correct explanation of $(A)$
b
Assertion $(A)$: True

Reason $(R)$: True but not correct explanation.

Correct explanation: Expansion of octet not possible for '$B$'.

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