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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. 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).
  3. (A) is true but (R) is false.
  4. (A) is false but (R) is true.

Correct answer · Option 2

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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