19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
What is the hybridisation state of benzyl carbonium ion ? (NEET 2013)
Arrange the following in increasing order of stability. (NEET 2013) 1. CH C CH CH 2. CH C 3. CH CH
The total number of -bond electrons in the following structure is (NEET 2015)
Given: Which of the given compounds can exhibit tautomerism? (NEET 2015)
The number of sigma () and pi ( ) bonds in pent-2- en-4-yne is (NEET 2019)
At room temperature, the eclipsed and staggered forms of ethane cannot be isolated because (AFMC 2010)
Which of the following species is not electrophilic in nature? (AIPMT 2010)
The total number of isomers of C4H7OH is (CPMT 2010)
The IUPAC name of the following compound is CH2 = C = CH — CH3 (CPMT 2011)
The correct order of acidity of the following compounds is (CPMT 2010)
Which of the following is the most stable carbocation? (CPMT 2010) (a) C H CH (b) CH C
Which of the following species is paramagnetic in nature? (CMC 2010)
The correct IUPAC name for the compound is (AIPMT 2011)
The number of metamers of the compound with molecular formula C4H10O is (AFMC 2009)
Which of the following is an aromatic compound ? (AFMC 2009) (a) (b) (c) (d)
Which is the strongest acid ? (CPMT 2009)
In the following the most stable conformation of n- butane is (AIPMT 2010) (a) (b) (c) (d)
A compound with molecular formula, C H has two tertiary carbons. Its IUPAC name is (AFMC 2009)
IUPAC nomenclature of is (AFMC 2010)
(CPMT 2009) Correct IUPAC name of above compound is
Which nomenclature is not according to IUPAC system? (AIPMT 2012) (a) (b) (c) (d)
Which of the following is most basic ? (CPMT 2008)
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)
Inductive effect involves (AFMC 2008)
The state of hybridisation of C2, C3, C5 and C6 of the hydrocarbon, is in the following sequence (AIPMT 2009)