19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
The hybridization of carbon atoms in C—C single bond of H — C C — CH CH2 is:
Assertion: Ethylene is more reactive than ethane. Reason: Ethylene possess pi bond.
In which bond angle is the highest
A tertiary butyl carbocation is more stable than a secondary butyl carbocation because of which of the following? (NEET 2020)
The most stable carbocation, among the following is (NEET 2019)
The number of sigma () and pi ( ) bonds in pent-2- en-4-yne is (NEET 2019)
Which of the following is correct with respect to –I effect of the substituents? (R = alkyl) (NEET 2018)
Which of the following molecules represents the order of hybridisation sp2, sp2, sp, sp from left to right atoms? (NEET 2018)
The correct statement regarding electrophile is (NEET 2017)
The IUPAC name of the compound is _____. (NEET 2017)
Which among the given molecules can exhibit tautomerism? (NEET-II 2016)
Consider the following compounds: Hyperconjugation occurs in (NEET 2015)
Which of the following statements is not correct for a nucleophile? (NEET 2015)
The enolic form of ethyl acetoacetate as shown below has (NEET 2015)
Given: Which of the given compounds can exhibit tautomerism? (NEET 2015)
The total number of -bond electrons in the following structure is (NEET 2015)
What is the hybridisation state of benzyl carbonium ion ? (NEET 2013)
CH CH
Arrange the following in increasing order of stability. (NEET 2013) 1. CH C CH CH 2. CH C 3. CH CH
Structure of the compound whose IUPAC name is 3- ethyl-2-hydroxy-4-methylhex-3-en-5-ynoic acid is (NEET 2013) (a) (b) (c) (d)
The structure of isobutyl group in an organic compound is (NEET 2013)
Which nomenclature is not according to IUPAC system? (AIPMT 2012) (a) (b) (c) (d)
The correct IUPAC name for the compound is (AIPMT 2011)
The IUPAC name of the following compound is CH2 = C = CH — CH3 (CPMT 2011)
Which of the following species is not electrophilic in nature? (AIPMT 2010)