JEE Main 202624 JanuaryEvening Shift
- Exam
- JEE Main
- Year
- 2026
- Date
- 24 January
- Shift
- Evening Shift
- Subject
- Chemistry
- Chapter
- General Organic Chemistry
JEE Main 2026 · 24 January · Evening Shift · Chemistry · General Organic Chemistry
Find out the statements which are not true. A. Resonating...
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:
Options
- AB & D only
- BA, C & D only
- CB, D & E only
- DA, D & E only
Correct answer
A. B & D only
Step-by-step solution
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.