[email protected]

India's First Online IIT-JEE & NEET Coaching Platform - Trusted Since 2006

+91-87964 74404

12 grade chemistry others

Phenol with CCl4 and KOH gives salicylic acid. The reaction is known as: (A) Friedel-Craft reaction(B) Reimer - Tiemann reaction (C) Rosenmund's reaction (D) Siemlet reaction

Aniket Singh

1 Year agoGrade

1 Answer

Askiitians Tutor Team

1 Year ago

To solve the question, let's first understand the reaction mentioned:

When phenol (C6H5OH) reacts with carbon tetrachloride (CCl4) in the presence of potassium hydroxide (KOH), it undergoes a specific reaction that leads to the formation of salicylic acid (ortho-hydroxybenzoic acid).

This reaction is known as the Reimer-Tiemann reaction.

Here's a breakdown of the options:

(A) Friedel-Craft reaction: This reaction involves the alkylation or acylation of aromatic compounds and is not applicable here.

(B) Reimer - Tiemann reaction: This is the correct answer. It involves the ortho-formylation of phenol, leading to the formation of salicylic acid when treated with KOH and CCl4.

(C) Rosenmund's reaction: This reaction involves the hydrogenation of acyl chlorides to aldehydes and is not related to the reaction in question.

(D) Siemlet reaction: This involves the formation of phenolic compounds from phenols and is not applicable here.

Thus, the correct answer to the question is:

(B) Reimer - Tiemann reaction

is Pradeep Chemistry+Ncert sufficient for all of the theory of Jee Mains Chemistry?

Hi, I’m a self-study JEE 2027 aspirant with a large 11th backlog. Since I don’t think 6–8 hour one-shots are sufficient to cover the full theory + breadth of problem types of a JEE chapter, I’ve shifted from lecture-based preparation to book-based self-study.

I have a problem with using NCERT as my primary chemistry source. In my experience, it is concise and information-heavy, but often lacks detailed explanations, systematic organisation of concepts, and categorisation of problem types. This seems especially problematic for Physical and Organic Chemistry, where I feel that simply reading NCERT may not give enough depth or problem-solving preparation.

So I’m considering this approach:

Pradeep Chemistry → complete the chapter thoroughly from Pradeep → then read NCERT for that chapter → solve JEE Main PYQs/problems.

My main question is:

Is Pradeep + NCERT sufficient as the complete theory source for JEE Main-level Chemistry?

In other words, after thoroughly completing a chapter from Pradeep and then NCERT, can I consider the theory part of that chapter complete for JEE Main, with only PYQs/problem practice remaining?

I’m asking specifically about JEE Main level, not Advanced.

Also, if Pradeep is not sufficient, what specific gap does it leave, and what would you recommend as a better book-based alternative for self-study?

Grade 1212 grade chemistry others

1 Answer Available

Last Activity: 5 Days ago

Which of the following is more acidic in nature?
A. HClO
B. HCl₂O
C. HCl₃O
D. HCl₄O

Grade 1212 grade chemistry others

1 Answer Available

Last Activity: 0 Years ago

Which of the following is not a greenhouse gas?

A. Carbon dioxide

B. Sulphur dioxide

C. Methane

D. Nitrogen

Grade 1212 grade chemistry others

1 Answer Available

Last Activity: 0 Years ago

Which of the following is not an antibiotic?

(A) Morphine

(B) Penicillin

(C) Streptomycin

(D) Chloramphenicol

Grade 1212 grade chemistry others

1 Answer Available

Last Activity: 0 Years ago

Which of the following is not optically active?
A. [Co(en)₃]³⁺
B. [Cr(ox)₃]³⁻
C. cis - [CoCl₂(en)₂]⁺
D. trans - [CoCl₂(en)₂]⁺

Grade 1212 grade chemistry others

1 Answer Available

Last Activity: 0 Years ago

View all Questions