We carried out a solventless aldol reaction reacting 1-indanone and 3,4-dimethox

Question

We carried out a solventless aldol reaction reacting 1-indanone and 3,4-dimethoxybenzaldehyde and adding NaOH. We added HCl the reaction mixture until the solution wasn't basic anymore.

Why is Hydrochloric acid added to the reaction mixture?

-Hydrochloric acid is used to neutralize any excess sodium hydroxide

-Hydrochloric acid is used to protonate the carbonyl group of 1-indanone

-None of the answers shown are correct

-Hydrochloric acid is necessary in the formation of the enol in this reaction

What might be the result if you did not add enough Hydrochloric acid and the final pH remained about 7?

-Yield would likely increase and the purity of the product would increase

-Yield would likely decrease and the purity of the product would decrease

-Yield would remain the same, but purity of the product would decrease

-Yield would remain the same, but purity of the product would increase

Explanation / Answer

Hydrochloric acid is used to neutralize any excess sodium hydroxide

Yield would remain the same, but purity of the product would decrease

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