19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
The correct order of acidity of the following compounds is (CPMT 2010)
The kind of delocalisation involving sigma bond orbitals is called
Which of the following represents the case of hyperconjugation? (a) (b) (c)
Hyperconjugation occurs in (a) (b) (c)
Hyperconjugation occurs in (a) CH CH (b) CH CH CH (c) CH CH CH
How many hyperconjugable H-atoms does this molecule has?
GENERAL ORGANIC CHEMISTRY Canonical structures due to hyperconjugation in this molecule can be written as (a) (b)
Compare acidic strength:
Among these, I is the chain isomer of
Among these III is the chain isomer of
Among these functional isomers are
I. CH CH CH CH CH II. CH CH CH CH | CH III. CH | CH C CH | CH Among these, chain isomers are
Among these, positional isomers are
These two conformers exist in a state of dynamic equilibrium. Which one is more stable?
The IUPAC name of is (AIPMT 2006)
The number of isomeric alkenes with molecular formula C6H12 are (PMET 2006)
Which of the following compounds will not exhibit cis-trans isomerism ? (PMET 2006) (a) (b) (c) (d)
For (i) I–, (ii) Cl–, (iii) Br–, the increasing order of nucleophilicity would be (AIPMT 2007)
Which of the following represents the correct order of the acidity in the given compounds ? (AIPMT 2007)
Geometrical isomers differ in (PMET 2007)
In the hydrocarbon, the state of hybridisation of carbons1, 3 and 5 are in the following sequence (AIPMT 2008)
The enolic form of ethyl acetoacetate as shown below has (NEET 2015)
Which of the following statements is not correct for a nucleophile? (NEET 2015)
Consider the following compounds: Hyperconjugation occurs in (NEET 2015)
Which among the given molecules can exhibit tautomerism? (NEET-II 2016)