19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
Which of the following represents the case of hyperconjugation? (a) (b) (c)
The kind of delocalisation involving sigma bond orbitals is called
Which of the following is antiaromatic?
Which of the following carbanion is aromatic? (a) (b) (c) (d)
Which of the following is aromatic? GENERAL ORGANIC CHEMISTRY
Which of the following is aromatic?
Which of the following is Anti-aromatic? (a) (b) (c)
Which of the following is aromatic? (a) (b) (c) (d)
Which of the following is non-Aromatic? (a) (b) (c)
Which of the following is Aromatic? (a) (b) GENERAL ORGANIC CHEMISTRY (c)
Which of the following is aromatic compound? (a) (b) (c) (d)
What is the decreasing order of stability (most stable ->least stable) of the following carbocations?
Rearrangement in this carbocation will produce (a) (b)
Rearrangement in this carbocation will produce (a) GENERAL ORGANIC CHEMISTRY (b)
Which of the following carbocations will be most stable? (a) Ph C (b) CH CH (c) (CH ) CH (d) CH CH CH
Most stable carbonium ion is (a) C H (b) (CH ) C (c) (C H ) C (d) C H CH
Which of the following statements is correct about methyl group?
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 orders is correct for the stability of these carbanions ?
Consider the following carbocations (I) Cl3C+ (II) Cl2CH+ (III) ClCH (IV) CH The stability sequence follows the order
Due to the presence of an unpaired electron, free radicals are
Which of the following orders is correct for no-bond- resonance energy of these radicals ?
CH CH CH CH HC C III II I Which of the following orders is correct for the stability of these carbanions ?
Most stable carbocation is (a) (b) (c) (d)
What is the correct order of stability of the given cations: CH3CHCHCH3 H3C OH 3-methyl-2-butanol 3 2 1 GENERAL ORGANIC CHEMISTRY