Q: Which of the following statements about inductive effect is correct?

Inductive effect is transmitted through $$\\sigma$$ bonds.

Question 1

Which of the following statements about resonance structures is correct?

Accepted Answer

Resonance structures differ only in the position of electrons, not atoms.

Question 2

Consider the following molecules: $$CH_3COOH$$, $$CH_3COONa$$, $$CH_3CONH_2. $$Which has the highest resonance energy?

Accepted Answer

$$CH_3COOH$$

Question 3

Which of the following compounds is NOT aromatic?

Accepted Answer

$$C_6H_{10} ($$cyclohexane)

Question 4

Which of the following statements about inductive effect is correct?

Accepted Answer

Inductive effect is transmitted through $$\sigma$$ bonds.

Question 5

Arrange the following carbocations in order of decreasing stability: $$CH_3CH_2^+$$, $$CH_3_2CH^+$$, $$(CH_3$)_3C^+.$$

Accepted Answer

$$(CH_3$)_3C^+ \u003e CH_3_2CH^+ \u003e CH_3CH_2^+$$

Question 6

Which of the following molecules has the highest dipole moment?

Accepted Answer

$$CH_3CHO$$

Question 7

Which of the following is the least stable canonical structure for 1-methoxy-1,3-butadiene?

Accepted Answer

$$CH_2=CH-CH$$($$OCH_3$$)-$$CH_2$$

Question 8

Which of the following statements about cyclooctatetraene is correct?

Accepted Answer

It is a non-conjugated system.

Question 9

Which of the following compounds is anti-aromatic?

Accepted Answer

Cyclobutadiene

Question 10

Which of the following is NOT a resonance stabilized compound?

Accepted Answer

$$CH_3CH_2CH_2CH_3$$

Question 11

Which of the following statements about the resonance energy of aromatic compounds is correct?

Accepted Answer

Resonance energy is highest in benzene.

Question 12

Which of the following molecules has a nitro group that is NOT coplanar with the phenyl ring?

Accepted Answer

$$o-$$nitroaniline

Question 13

Which of the following is the correct order of stability for the following free radicals: $$CH_3$$^\cdot$$, CH_2CH_3$$^\cdot$$, $$($$CH_3)_2CH$$^\cdot$$, $$($$CH_3)_3C$$^\cdot$$?

Accepted Answer

$$(CH_3$)_3C^\cdot \u003e (CH_3$)_2CH^\cdot \u003e CH_2CH_3^\cdot \u003e CH_3$^\cdot$$

Question 14

Which of the following is NOT a conjugated system?

Accepted Answer

$$CH_3CH_2CH_2CH_3$$

Question 15

Which of the following statements about the dipole moment of molecules is correct?

Accepted Answer

Dipole moment depends on both molecular geometry and electronegativity differences.

Question 16

Which of the following is the most stable resonating structure for the compound $$O=N^+-O^-$$?

Accepted Answer

$$O=N^+-O^-$$

Question 17

Which of the following pairs, first species is more stable than second?

Accepted Answer

$$CH_3CH_2CO_2^-$$ and CH_3CH_2O^-$

Question 18

Which of the following compounds is aromatic?

Accepted Answer

Cyclopentadienyl anion

Question 19

Which of the following statements about the basicity ($$pK_b) of $$aniline derivatives is correct?

Accepted Answer

Electron-donating groups increase basicity.

General Organic Chemistry (GOC) – Resonance, Inductive Effects, Aromaticity, and Stability (IIT JEE Level)

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