General Organic Chemistry MCQ -1 (Advanced) - JEE MCQ

 I and II

I, II and IV

I, III and IV

II and IV

Salicylic acid (o–Hydroxybenzoic acid) is much stronger than its m-,p-isomers and benzoic acid itself.

Acidity of salicylic acid is due to steric inbibition of re3sonance, as – OH group forces – COOH out of the plane of ring

The orbitals which are in the same plane take part in resonance

All the resonating structures have real existence

CH₃CHOO, HCOO

HO,NH

CH₂=CH: , H – C = C

CH₃NH₂, CH₃,OH

Hydration effect stabilises dimethyl ammonium ion more than trimethyl ammonium ion

In chlorobenzene as there is no hydration effect so, trimethyl ammonium ion gets less stabillised than dimethyl ammonium ion

RCONH₂ is feebly acidic with respect to RCOOH

CH₃ > NH₂ > OH is the basicityh order

Identical arrangement of atoms

Nearly the same energy content

The same number of paired electrons

Identical bonding

p > q > r > s

s > q > p > r

q > s > p > r

none

C₄H₈N₄

C₂H₄N₂

C₁₂H₂₄N₁₂

C₁₆H₃₂N₁₆

None of these

None of these

F > NH₂ > CH₃ >OH`

NH₂ `> F` >CH₃` > OH`

F` > OH` > NH₂` > CH<sub>3</sub>`

NH₂ `> OH` > CH₃` > F`

(A) → s   

(B) → r

(C) → p

(D) → q

(A) → q    

(B) → p

(C) → s

(D) → r

(A) → r    

(B) → p

(C) → q

(D) → s

(A) → p    

(B) → s

(C) → r

(D) → q

(A) → s

(B) → r

(C) → q

(D) → p

(A) → q

(B) → r

(C) → p

(D) → s

(A) → q

(B) → p

(C) → r

(D) → s

none of these

Gattermann Koch synthesis

Etards reaction

Stephan’s reaction

Gattermann reaction

    5 sigma and 5 pi

    7 sigma and 3 pi

    8 sigma and 2 pi

    6 sigma and 4 pi