Consider the following sequence of reactions: | vedclass

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(C) The reaction sequence is the industrial preparation of phenol and acetone from cumene (isopropyl benzene).$1.$ Isopropyl benzene (cumene) reacts w

Vedclass · Accepted Answer

$z$ on reaction with $CH_3 MgBr$ followed by hydrolysis gives $2^{\circ}$ alcohol

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(C) The reaction sequence is the industrial preparation of phenol and acetone from cumene (isopropyl benzene).$1.$ Isopropyl benzene (cumene) reacts with $O_2$ to form cumene hydroperoxide $(x)$.$2.$ Cumene hydroperoxide on acid hydrolysis gives phenol $(y)$ and acetone $(z = CH_3COCH_3)$.Analysis of statements about acetone $(z)$:$A.$ Acetone contains a $CH_3CO-$ group,so it gives a positive iodoform test ($CHI_3$ yellow ppt). This is a correct statement.$B.$ Reduction of acetone $(CH_3COCH_3)$ with $H_2/Pd$ gives isopropyl alcohol $(CH_3CH(OH)CH_3)$. This is a correct statement.$C.$ Reaction of acetone $(CH_3COCH_3)$ with $CH_3MgBr$ followed by hydrolysis gives tert-butyl alcohol $(CH_3C(OH)(CH_3)_2)$,which is a $3^{\circ}$ alcohol,not a $2^{\circ}$ alcohol. This is an incorrect statement.$D.$ Acetone is a ketone and does not reduce Fehling's reagent. This is a correct statement.Therefore,the incorrect statement is $C$.

Consider the following sequence of reactions:
Isopropyl benzene $\xrightarrow{O_2} x$ $\xrightarrow[H_2 O]{H^{+}} y + z$
The incorrect statement about $z$ is:

Similar Questions

Statement-$I$ :- Acetaldehyde and acetone can be distinguished by Tollen's reagent.
Statement-$II$ :- Aromatic aldehyde does not give Fehling test.

The given reaction is an example of an intramolecular aldol condensation. Identify the product $(A)$ formed in the reaction:
$1,5-\text{cyclooctanedione} \xrightarrow{H_2SO_4, H_2O} (A)$

Which of the following compounds would undergo aldol condensation?

Which of the following is not formed as one of the products in the following reaction?

For the following reaction sequence, choose the correct option:
Benzene $\xrightarrow[\text{ii. NaOCl}]{\text{i. CH}_3\text{COCl, AlCl}_3} P + Q$

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Consider the following sequence of reactions:Isopropyl benzene $\xrightarrow{O_2} x$ $\xrightarrow[H_2 O]{H^{+}} y + z$The incorrect statement about $z$ is: