relative stability

arrange according to stability order :

(i) CH₃OC⁺H₂
(ii) C⁺H₂
(iii) CH₃C⁺H₂

(iv) CH₃C⁺H₂

3 Answers

1>3>2>4

delocalise the lone pair of oxygen towards the ring , and u see that carbocation is also in conjugation.

now in 2 also there is +M effect of Phenyl but in 1 the resonating structure has octet of all atoms complete hence is more stable.
thus 1 > 2

3 has +M of phenyl and 3 HC from methyl so 3> 2 , and same reason for 1>3 as for 1 > 2

4th has only hc rest all hav resonance.
so 4 < all

hence 1 > 3 >2 > 4

I THINK IT IS= 1>3>4>2

no, qwerty is right. its 1>3>2>4

√ √ || {} [] () → ~ ^ x x x → → ln log lg lim lim cos sin tan cot arcsin arccos arctan

∫ ∫ ∫ ∫ ∫ ∬ ∬ ∬ ∬ ∬ ∭ ∭ ∭ ∭ ∭ ⨌ ⨌ ⨌ ⨌ ⨌

∑ ∑ ∑ ∑ ∑ ∮ ∮ ∮ ∮ ∮ ∏ ∏ ∏ ∏ ∏ ∐ ∐ ∐ ∐ ∐

+ - × ÷ ± ∓ = ∪ ∩ ≠ ∼ ≈ ∅ ∀ ∃ ∈ ∋ ∝ ≤ ≥ ≃ ≅ ≡ < > ≪ ≫ ⊂ ∉ ⊃ ⊆ ⊇ ⇒ ⇐ ⇔ ⇒ ⇐ ⇔ ⇑ ⇓ ⇕ → ← ↔ → ← ↔ ↑ ↓ ↕ ↖ ↗ ↘ ↙ ↪ ↩ ⇀ ↼ ⇁ ↽

° ∂ ∞ α β γ δ θ λ μ ν ξ π ρ σ φ ω ε ƒ κ τ υ Γ Δ Λ Σ Π Ω