19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
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
The most stable carbocation, among the following is (NEET 2019)
The IUPAC name of the compound having the formula CH C CH CH is (AIPMT 2009)
The state of hybridisation of C2, C3, C5 and C6 of the hydrocarbon, is in the following sequence (AIPMT 2009)
The stability of carbanions in the following (I) RC C Θ (II) (III) R C CH Θ (IV) R C CH Θ is in the order of (AIPMT 2008)
Which of the following is most basic ? (CPMT 2008)
Inductive effect involves (AFMC 2008)
IUPAC name of (PMET 2008)
In the hydrocarbon, the state of hybridisation of carbons1, 3 and 5 are in the following sequence (AIPMT 2008)
Geometrical isomers differ in (PMET 2007)
Which of the following represents the correct order of the acidity in the given compounds ? (AIPMT 2007)
For (i) I–, (ii) Cl–, (iii) Br–, the increasing order of nucleophilicity would be (AIPMT 2007)
Which of the following compounds will not exhibit cis-trans isomerism ? (PMET 2006) (a) (b) (c) (d)
The number of isomeric alkenes with molecular formula C6H12 are (PMET 2006)
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)