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(D) Fehling's test is given by aliphatic aldehydes but not by aromatic aldehydes or ketones.$(a)$ Gattermann-Koch reaction gives benzaldehyde (aromati

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$1-$Methylcyclohexene + $O_3$ followed by $Zn/H_2O$

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(D) Fehling's test is given by aliphatic aldehydes but not by aromatic aldehydes or ketones.$(a)$ Gattermann-Koch reaction gives benzaldehyde (aromatic aldehyde).$(b)$ Reaction of acid chloride with dialkylcadmium gives a ketone (pentan$-3-$one).$(c)$ Rosenmund reduction of p-toluoyl chloride gives p-tolualdehyde (aromatic aldehyde).$(d)$ Ozonolysis of $1-$methylcyclohexene gives $6-$oxoheptanal,which is an aliphatic keto-aldehyde. Since it contains an aliphatic aldehyde group,it gives a positive Fehling's test (reddish brown precipitate of $Cu_2O$).

The product of which of the following reactions forms a reddish brown precipitate when subjected to Fehling's test?

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