19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
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)
Assertion: Cyclopentadienyl anion is much more stable than allyl anion. Reason: Cyclopentadienyl anion is aromatic in character.
Which among the following statements are true with respect to electronic displacement in a covalent bond ? (1) Inductive effect operates through pi bond (2) Resonance effect operates through sigma bond (3) Inductive e…
In which of the following molecule the resonance effect is not present? (a) (b) (c) (d)
Mesomeric effect involves delocalisation of
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 ?