A common organic reaction, referred to as an SN2 reaction, involves an electron

Question

A common organic reaction, referred to as an SN2 reaction, involves an electron rich substance displacing another substance. An example of this reaction is shown below:

Which of the following best labels the acid, base, conjugate acid, and conjugate base?

A. This is not an acid-base reaction

B. Acid: CH3Cl; Base: OH-; Conjugate Acid: CH3OH; Conjugate Base: Cl-

C. Acid: OH-; Base: CH3Cl; Conjugate Acid: Cl-; Conjugate Base: CH3OH

D. Acid: OH-; Base: CH3Cl; Conjugate Acid: CH3OHConjugate Base: Cl-

E. Acid: CH3Cl; Base: OH-; Conjugate Acid: Cl-; Conjugate Base: CH3OH

It's a Lewis Acid-Base. The answer is is Not C. or E.

Explanation / Answer

According to Bronsted Lowry acid base theory, proton donor is acid and proton acceptor is base.

So, this is not an acid base reaction because no species is abstracting a proton or dontaing.

But OH- is a nucleophile substituting another nucleophile, Cl-.

Option A is the correct answer.

Thanks

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