Q9 / 150 · MHT CET 2026 (15 April Shift 2) · Chemistry
Match List I with List II
List I List II (A). Inductive effect (I). Delocalization of $\pi$ electrons (B). Hyper-conjugation (II). Displacement of $\pi$ electrons (C). Resonance effect (III). Delocalization of $\sigma$ electrons (IV). Displacement of $\sigma$ electrons
Choose the correct answer from the options given below:
| List I | List II |
|---|---|
| (A). Inductive effect | (I). Delocalization of $\pi$ electrons |
| (B). Hyper-conjugation | (II). Displacement of $\pi$ electrons |
| (C). Resonance effect | (III). Delocalization of $\sigma$ electrons |
| (IV). Displacement of $\sigma$ electrons |
Choose the correct answer from the options given below:
- Correct answerA$(A) - (IV), (B) - (III), (C) - (I)$
- B$(A) - (II), (B) - (IV), (C) - (I)$
- C$(A) - (I), (B) - (II), (C) - (IV)$
- D$(A) - (III), (B) - (IV), (C) - (I)$
Solution
Inductive effect involves the permanent displacement of $\sigma$ electrons along a saturated carbon chain due to differences in electronegativity. Thus, (A) matches with (IV).
Hyper-conjugation involves the delocalization of $\sigma$ electrons (typically from a C-H bond) into an adjacent empty p-orbital or $\pi$ system. Thus, (B) matches with (III).
Resonance effect involves the delocalization of $\pi$ electrons or lone pairs across a conjugated system. Thus, (C) matches with (I).
The correct matching is (A) - (IV), (B) - (III), (C) - (I).
Answer: $(A) - (IV), (B) - (III), (C) - (I)$
Hyper-conjugation involves the delocalization of $\sigma$ electrons (typically from a C-H bond) into an adjacent empty p-orbital or $\pi$ system. Thus, (B) matches with (III).
Resonance effect involves the delocalization of $\pi$ electrons or lone pairs across a conjugated system. Thus, (C) matches with (I).
The correct matching is (A) - (IV), (B) - (III), (C) - (I).
Answer: $(A) - (IV), (B) - (III), (C) - (I)$
Hence, the correct answer is option: 'A'.