Which of the following statements regarding CO group is not correct?

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An aryl group stabilises an aldehyde more than the transition state

The carbon atom of $CO$ group in aldehydes is sp² hybridized

The aryl group in aromatic aldehydes speeds up the addition reaction across the $CO$ group

T he carbon atom of $CO$ group in the transition state formed during the addition reaction across $CO$ group is
${sp}^{3}$ hybridized

answer is C.

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Detailed Solution

Statement C regarding CO group is not correct.

The $aryl$ group in aromatic aldehyde retards the addition reaction across the $CO$ group. Unsaturated hydrocarbons with double or triple bonds demonstrate the extra reaction. Unsaturated chemicals are changed into saturated ones via the adding reaction. - Hydration reaction is an illustration of an addition reaction. In this process, ethanol is created when ethene and water interact.

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