Write a detailed mechanism for the following reaction. Draw step one of the mechanism which forms the initial enolate. Draw only the enolate form of the reaction, NOT the carbanion. Include lone pairs and formal charges in the mechanism. Draw out explicitly only the ONE hydrogen that is removed in this mechanistic step. DO NOT USE ABBREVIATIONS SUCH AS OEt for OCH2CH3.

answer: c. the experiment shows that the red substance experienced a chemical change.

explanation: chemical change is the change in which chemical composition of the substance changes. physical change is the change in which there is no change in chemical composition.

chemical changes are accompanied by following changes:

a) precipitate formation

b) energy is released or absorbed

c) formation of bubbles

d) change in color

as it is given that the red color has disappeared and there is production of gas, it means the red substance has undergone a chemical change.

e

the answer to your question is c.

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