What is the order of reagents that were added to the test tube used to carry out the synthesis of dibenzalacetone?

An experiment designed to synthesize dibenzlacetone would have reagents added in the following order:

Explanation:

It is worth noting that the reaction is a type of mixed aldol condensation reaction, which uses sodium hydroxide as base.

I hope this is was a clear solution to the problem.

c is the answer because when something is left after something evaporates that shows the chemical change.

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