19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
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
Which of the following carbocation is least stable? (a) (b) CH CH (c) CH CH CH (d)
C C : 4 ; C H :6 ; C C :1 ; C C :2 . These number of and bonds are present in which of the following molecule? Choose the correct option. (a) CH C CH CH CH (b) CH C CH CH (c) CH CH CH CH CH
Assertion: The C C distance is longer than C C distance Reason: Both C atoms in alkenes are sp2 hybridized.
Underlined carbon is sp3 hybridised in (a) CH CH CH (b) CH CH NH (c) CH CONH (d) CH CH CN
How many and bonds are present between carbon atoms in H C C CH CH is
In which of the following compounds, C has used sp2 orbital in making C—O bond? (a) (b) (c) (d)
C1—C2 bond of this molecule is formed by GENERAL ORGANIC CHEMISTRY