The Reimer-Tiemann reaction is a chemical reaction that involves the ortho-formylation of phenols. In this reaction, phenol is treated with carbonyl compounds in the presence of a base, typically sodium hydroxide, to yield ortho- and para-hydroxybenzaldehydes. The reaction is particularly useful for introducing aldehyde functional groups into aromatic compounds.

An example of the Reimer-Tiemann reaction is the reaction of phenol with chloroform in the presence of a strong base such as sodium hydroxide. In this case, the phenol undergoes formylation to produce 2-hydroxybenzaldehyde and 4-hydroxybenzaldehyde as products.

• Starting compound: Phenol
• Reagents: Chloroform, Sodium hydroxide
• Products: 2-Hydroxybenzaldehyde and 4-Hydroxybenzaldehyde

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?

Which of the following is more acidic in nature?

• A. HClO
• B. HCl₂O
• C. HCl₃O
• D. HCl₄O

Which of the following is not a greenhouse gas?

• A. Carbon dioxide
• B. Sulphur dioxide
• C. Methane
• D. Nitrogen

Which of the following is not an antibiotic?

• (A) Morphine
• (B) Penicillin
• (C) Streptomycin
• (D) Chloramphenicol

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]⁺