JEE Main 8 Repeated Reagents 2025 For Session 2 Exam Day

JEE Main 8 Repeated Reagents 2025 For Session 2 Exam Day can be checked here based on the previous year trends.

Arni Sinha

Updated on -Mar 29, 2025 | 09:06 AM IST

JEE Main 8 Repeated Reagents 2025 For Session 2 Exam Day

JEE Main 8 Repeated Reagents 2025 For Session 2 Exam Day: In JEE Main 2025, Chemistry is extremely important. Organic Chemistry is more likely to test students on significant reagents and their reactions. Some reagents simply keep appearing on previous tests and thus are vital to a quick review. Knowledge of their reactions, how they work, and any exceptions will assist students in answering tough questions. 8 reagents keep coming up quite a lot, which are Grignard reagent, KMnO₄, NaBH₄, LAH, NBS, DIBAL-H, Alcoholic KOH, and Tollens' test, along with their major changes. Learning about these reagents thoroughly will assist students in improving their accuracy and scores overall in JEE Main.

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JEE Main 8 Repeated Reagents 2025 For Session 2 Exam Day

The following table represents the most frequently tested reagents and their significant reactions in JEE Main. The aspirants must note these changes and understand how they operate to answer the questions effectively.

Reagent	Key Reactions
Grignard Reagent (RMgX)	- Reaction with Epoxides - Reaction with Aldehydes and Ketones - Reaction with Esters
Tollens’ Test & Fehling’s Solution	- Tollens' Test (AgNO₃ + NH₃) - Fehling’s Solution (Cu²⁺ in basic medium)
Clemmensen Reduction (Zn-Hg/HCl)
NaBH₄ and LAH
DIBAL-H (Diisobutylaluminium Hydride)
KMnO₄ (Potassium Permanganate)
NBS (N-Bromosuccinimide) – Allylic Bromination
Alcoholic KOH

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