JEE Main 2026 — General Organic Chemistry Question with Solution
JEE Main 2026 (24 January Shift 2)
Question
Find out the statements which are not true.
A. Resonating structures with more number of covalent bonds and lesser charge separation are more stable.
B. In electromeric effect, an unsaturated system shows +E effect with nucleophile and -E effect with electrophile.
C. Inductive effect is responsible for high melting point, boiling point and dipole moment of polar compounds.
D. The greater the number of alkyl groups attached to the doubly bonded carbon atoms, higher is the heat of hydrogenation.
E. Stability of carbanion increases with the increase in character of the carbon carrying the negative charge.
Choose the correct answer from the options given below:
A. Resonating structures with more number of covalent bonds and lesser charge separation are more stable.
B. In electromeric effect, an unsaturated system shows +E effect with nucleophile and -E effect with electrophile.
C. Inductive effect is responsible for high melting point, boiling point and dipole moment of polar compounds.
D. The greater the number of alkyl groups attached to the doubly bonded carbon atoms, higher is the heat of hydrogenation.
E. Stability of carbanion increases with the increase in character of the carbon carrying the negative charge.
Choose the correct answer from the options given below:
Choose an option
Show full solutionCorrect option: A
Correct answer
AB & D only
Step-by-step explanation
Evaluating each statement:
(A) TRUE - More covalent bonds with lesser charge separation increases resonance stabilization.
(B) FALSE - In electromeric effect, unsaturated systems show +E effect toward nucleophiles and -E effect toward electrophiles, opposite to stated.
(C) TRUE - Inductive effect of polar groups affects melting points, boiling points, and dipole moments.
(D) FALSE - Greater alkyl substitution on doubly bonded carbons decreases heat of hydrogenation (more substituted alkenes are more stable).
(E) TRUE - Higher s-character of orbital holding negative charge increases carbanion stability.
Statements NOT true: B and D. Therefore answer is B & D only.
(A) TRUE - More covalent bonds with lesser charge separation increases resonance stabilization.
(B) FALSE - In electromeric effect, unsaturated systems show +E effect toward nucleophiles and -E effect toward electrophiles, opposite to stated.
(C) TRUE - Inductive effect of polar groups affects melting points, boiling points, and dipole moments.
(D) FALSE - Greater alkyl substitution on doubly bonded carbons decreases heat of hydrogenation (more substituted alkenes are more stable).
(E) TRUE - Higher s-character of orbital holding negative charge increases carbanion stability.
Statements NOT true: B and D. Therefore answer is B & D only.
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This is a previous-year question from JEE Main 2026, covering the General Organic Chemistry chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.