jee_main_2025_08_april_evening - Organic Chemistry - Some Basic Principles and Techniques Topics

Master these core formulas and structures to solve almost any past paper question.

Sample Questions in this Chapter

QUESTION #27 Reactive Intermediates and Reagents
Match the LIST-I with LIST-II:
LIST-ILIST-II
A. CarbocationI. Species that can supply a pair of electrons.
B. C-Free radicalII. Species that can receive a pair of electrons.
C. NucleophileIII. sp^2 hybridized carbon with empty p-orbital.
D. ElectrophileIV. sp^2/sp^3 hybridized carbon with one unpaired electron.
Choose the correct answer from the options given below:
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QUESTION #0 IUPAC Nomenclature
What is the correct IUPAC name of the following organic compound?
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QUESTION #38 Quantitative Elemental Analysis
On complete combustion, 0.210 text g of an organic compound containing C, H, and O yielded 0.127 text g of textH_2textO and 0.307 text g of textCO_2. The mass percentages of hydrogen and oxygen in the given organic compound respectively are:
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QUESTION #42 Qualitative Analysis of Functional Groups
Match the reagents in LIST-I with the corresponding chemical functional groups they detect in LIST-II:
LIST-I (Reagent)LIST-II (Functional Group detected)
A. Sodium bicarbonate solutionI. double bond / unsaturation
B. Neutral ferric chlorideII. carboxylic acid
C. Ceric ammonium nitrateIII. phenolic - OH
D. Alkaline textKMnO_4IV. alcoholic - OH
Choose the correct answer from the options given below:
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JEE Physics: Waves (+15.5%) | Electrostatics: Concentric Shells (-29.7%) | Modern Physics: Photoelectric Clones (+34.2%) | Mathematics: Definite Integrals (+18.1%) | Chemistry: Coordination Splitting (-11.4%) | JEE Physics: Waves (+15.5%) | Electrostatics: Concentric Shells (-29.7%) | Modern Physics: Photoelectric Clones (+34.2%) | Mathematics: Definite Integrals (+18.1%) | Chemistry: Coordination Splitting (-11.4%)
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