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Maximum extent of steric inhibition of r...

Maximum extent of steric inhibition of resonance can be expected in

A

B

C

D

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The correct Answer is:
C
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Steric Inhibition Protection

Assertion (A) : Ph overset (o+)(N_2) Br^(Θ) couples with N, N -dimethyl aniline (I) but not with 2,6, -dimethyl- N,N -dimethuyl aniline (II) Reason (R ): Due to steric inhibition of resonance , the p-position of (II) is not sufficiently activated fro the coupling reaction.

The most important condition for resonanace to occur is that the invovled atoms in resonating structure must be coplanar or nearly coplanar for maximum delocalisation. If this condition does not fulfil, involved orbitals cannot be parallel to each other and as consequence delocalisation cannot occur. Bulky groups present on adjacent atoms inhibit the planarity of atoms involved in resonance. this pehnomenon is known as steric inhibition of resonance. Steric inhibition of resonance has profound effect on Q. Which of the following is most acidic:

The most important condition for resonanace to occur is that the invovled atoms in resonating structure must be coplanar or nearly coplanar for maximum delocalisation. If this condition does not fulfil, involved orbitals cannot be parallel to each other and as consequence delocalisation cannot occur. Bulky groups present on adjacent atoms inhibit the planarity of atoms involved in resonance. this pehnomenon is known as steric inhibition of resonance. Steric inhibition of resonance has profound effect on Q. Arrange the following in the decreasing order of basicity: .

Assertion: Salicyclic acid is much strogest than its m-p -isomers and benzoic acid itself. Reason: It is due to steric inhibitation to resonance, as -OH group forces -COOH out of the plane of ring.

Assertion (A): 2,6-Dimethyl-4-nitrophenol (I) is more acidic than 3,5-dimethyl-4-nitrophenol (II). Reason (R ): It is due to the steric inhibition of the resonance of (-NO_(2)) group with two (Me) groups in (II).

Maximum extent of hydrogen bonding is observed in

Can the phenomenon of resonance be exhibited in RL or RC circuit.