MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Preparation of Carboxylic Acids from Hydrocarbons

Cumene is oxi...

Question

Cumene is oxidised in the presence of air to give compound ' $A$ ' which upon treated with dilute acid gives compound ' $B$ ' along with acetone. What is the compound ' $B$ '?

A

Benzene

No worries! We‘ve got your back. Try BYJU‘S free classes today!

B

Phenol

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

C

Ethyl phenyl ether

No worries! We‘ve got your back. Try BYJU‘S free classes today!

D

Isopropyl phenyl ether

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is B Phenol
Cumene (isopropylbenzene) is oxidised in the presence of air to cumene hydroperoxide. It is converted to phenol and acetone by treating it with dilute acid.

Suggest Corrections

thumbs-up

12

Similar questions

Q. Isopropylbenzene is oxidized in the presence of air to compound

^{'} A^{'}

. When compound

^{'} A^{'}

is treated with dilute mineral acid, the aromatic product formed is:

Q. An alcohol A, when heated with concentrated

H_{2} S O_{4}

gives an alkene B. When B is bubbled through bromine water and the product obtained is dehydrohalogenated with excess of sodamide, a new compound C is obtained. The compound C gives D when treated with warm dilute

H_{2} S O_{4}

H g S O_{4}

. D can also be obtained either by oxidising A with

K M n O_{4}

or from acetic acid through its calcium salt. Identify D.

Q. A compound ‘A’ when treated with

H N O_{3}

(in presence of

H_{2} S O_{4}

) gives compound ‘ B’, which is then reduced with

S n

H C l

to aniline? The compound ‘A’ is

Q. An organic compound 'A' on treatment with

N H_{3}

gives 'B', which on heating gives 'C'. 'C', when treated with

B r_{2}

in the presence of KOH, produces ethylamine. Compound 'A' is:

M n O_{2}

K O H

in the presence of

K N O_{3}

as an oxidizing agent, it gives a dark green compound (A).
Compound (A) disproportionates in acidic solution to give purple compound (B).
An alkaline solution of compound (B) oxidises

K I

to compound (C) whereas an acidified solution of compound (B) oxidises

K I

to (D). Identify (A), (B), (C), and (D).

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Synthesis of Carboxylic Acids

CHEMISTRY

Watch in App

explore_more_icon

Explore more

Preparation of Carboxylic Acids from Hydrocarbons

Standard XII Chemistry

Join BYJU'S Learning Program

CrossIcon