(C) Acetoacetic ester exhibits keto-enol tautomerism. It exists in equilibrium between its keto form $(CH_3-C(=O)-CH_2-COOC_2H_5)$ and its enolic form

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(C) Acetoacetic ester exhibits keto-enol tautomerism. It exists in equilibrium between its keto form $(CH_3-C(=O)-CH_2-COOC_2H_5)$ and its enolic form $(CH_3-C(OH)=CH-COOC_2H_5)$. Therefore,it behaves as both a keto compound and an unsaturated hydroxy compound.

Class 12 Chemistry 8-1.Aldehydes and Ketones Properties

Difficult

Acetoacetic ester behaves as

A
An unsaturated hydroxy compound
B
$A$ keto compound
C
Both of these ways
D
None of these

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Chapter

8-1.Aldehydes and Ketones

Subtopic

Properties

Match the reactants in Column-$I$ with the major products in Column-$II$.
Column-$I$ (Reactants) Column-$II$ (Products)
$(A)$ $HCHO + \text{Cyclohexyl-MgBr} \rightarrow X \xrightarrow{H_2O} Y$ $(i)$ $\text{Benzenesulfonic acid}$
$(B)$ $\text{2-oxocyclohexylacetate} \xrightarrow{NaBH_4}$ $(ii)$ $\text{Cyclohexylmethanol}$
$(C)$ $HCHO + CH_3-CH_2-CH(CH_3)-CH_2-MgBr \rightarrow X \xrightarrow{H_2O} Y$ $(iii)$ $\text{2-(2-hydroxycyclohexyl)acetate}$
$(D)$ $\text{Benzene} + \text{Oleum}$ $(iv)$ $Y = \text{3-methylpentan-1-ol}$

Column-$I$ (Reactants)	Column-$II$ (Products)
$(A)$ $HCHO + \text{Cyclohexyl-MgBr} \rightarrow X \xrightarrow{H_2O} Y$	$(i)$ $\text{Benzenesulfonic acid}$
$(B)$ $\text{2-oxocyclohexylacetate} \xrightarrow{NaBH_4}$	$(ii)$ $\text{Cyclohexylmethanol}$
$(C)$ $HCHO + CH_3-CH_2-CH(CH_3)-CH_2-MgBr \rightarrow X \xrightarrow{H_2O} Y$	$(iii)$ $\text{2-(2-hydroxycyclohexyl)acetate}$
$(D)$ $\text{Benzene} + \text{Oleum}$	$(iv)$ $Y = \text{3-methylpentan-1-ol}$

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