19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
What is the correct order of stability of the given cations: CH3CHCHCH3 H3C OH 3-methyl-2-butanol 3 2 1 GENERAL ORGANIC CHEMISTRY
Most stable carbocation is (a) (b) (c) (d)
CH CH CH CH HC C III II I Which of the following orders is correct for the stability of these carbanions ?
Which of the following orders is correct for no-bond- resonance energy of these radicals ?
Due to the presence of an unpaired electron, free radicals are
Consider the following carbocations (I) Cl3C+ (II) Cl2CH+ (III) ClCH (IV) CH The stability sequence follows the order
Which of the following orders is correct for the stability of these carbanions ?
Consider the following carbocations, (I) C H CH (II) C H CH CH (III) C H CHCH (IV) C H C CH The correct sequence of the stability of these is
Which of the following statements is correct about methyl group?
Most stable carbonium ion is (a) C H (b) (CH ) C (c) (C H ) C (d) C H CH
Which of the following carbocations will be most stable? (a) Ph C (b) CH CH (c) (CH ) CH (d) CH CH CH
Rearrangement in this carbocation will produce (a) GENERAL ORGANIC CHEMISTRY (b)
Rearrangement in this carbocation will produce (a) (b)
What is the decreasing order of stability (most stable ->least stable) of the following carbocations?
Which of the following is the most stabilized carbocation? (a) (b) (c) (d)
Which carbocation is the most stabilized? (a) (b) GENERAL ORGANIC CHEMISTRY (c) (d)
Assertion: Tropylium cation is more stable than Reason: It is stabilized by both resonance effect and inductive effect.
Assertion: Tertiary carbocations are generally formed more easily than primary carbocations. Reason: Hyperconjugation as well as inductive effect due to additional alkyl groups stabilize tertiary carbocations.
Arrange the following free radicals in order of decreasing stability. Methyl (I), Vinyl (II), Allyl (III), Benzyl (IV)
Which among the following free radicals is most stable? (a) (b) (c) (d) GENERAL ORGANIC CHEMISTRY
Negative inductive effect is shown by
F COOCH COCl I II III Which of these groups has –I effect?
Inductive effect of Cl atom operates in (a) CH CH CH Cl (b) CH CH CH CH Cl (c)
Which of these groups has –I effect?
The arrangement of (CH3)3C—, (CH3)2CH—, CH3CH2 — when attached to benzene or unsaturated group in increasing order of inductive effect is GENERAL ORGANIC CHEMISTRY