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Chemistry · EQUILIBRIUM

हिन्दी

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): \( \text{BF}_3 \) acts as an acid according to the Lewis concept despite having no protons. Reason (R): Species that accept an electron pair act as Lewis acids. In the light of the above statements, choose the correct answer from the options given below:

  1. A
    Both (A) and (R) are true and (R) is the correct explanation of (A).
  2. B
    Both (A) and (R) are true but (R) is NOT the correct explanation of (A).
  3. C
    (A) is true but (R) is false.
  4. D
    (A) is false but (R) is true.
View Answer & Solution

Correct answer · Option B

Both (A) and (R) are true but (R) is NOT the correct explanation of (A).

Explanation

Both (A) and (R) are true statements. However, (R) is just the definition of a Lewis acid; the specific explanation for BF3 being a Lewis acid is that the central boron atom is electron-deficient with an incomplete sextet.
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