19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
Assertion: Tertiary carbocations are generally formed more easily than primary carbocations. Reason: Hyperconjugation as well as inductive effect due to additional alkyl groups stabilize tertiary carbocations.
CH CH CH CH HC C III II I Which of the following orders is correct for the stability of these carbanions ?
Most stable carbocation is (a) (b) (c) (d)
What is the correct order of stability of the given cations: CH3CHCHCH3 H3C OH 3-methyl-2-butanol 3 2 1 GENERAL ORGANIC CHEMISTRY
Which of the following carbocation is least stable? (a) (b) CH CH (c) CH CH CH (d)
Which of the following compounds has incorrect IUPAC nomenclature? (a) (b) (c) (d)
The IUPAC name of the compound GENERAL ORGANIC CHEMISTRY is
The IUPAC name of is:
The IUPAC name of the compound (CH3)2 CH – CH = CH – CHOH – CH3 is :
The IUPAC name of the compound is:
The correct IUPAC nomenclature for the following alcohol is:
The IUPAC name of GENERAL ORGANIC CHEMISTRY is
Which one of the following contain isopropyl group ?
Assertion: NF is a weaker ligand than N CH . Reason: NF ionizes to give Fions in aqueous solution.
Assertion : Tropylium cation is aromatic in nature. Reason :The only property that determines its aromatic behaviour is planar structure.
Assertion: A compound with delocalised electrons is more stable than that compound would be if all its electrons were localised. Reason: The extra stability, a compound gains as a result of having delocalised electro…
Assertion : The carbocation CF CH is less stable than CF . Reason : In case of CF CH ,CF is strong electron withdrawing, therefore increases +ve charge whereas in CF , lone pair of ‘F’ overlap with vacant p-orbi…
Assertion : Carbanions like ammonia have pyramidal shape. Reason : The carbon atom carrying negative charge has an octet of electrons.
Tautomerism is exhibited by (1) GENERAL ORGANIC CHEMISTRY (2) (3) (4)
Maximum enol content is in (a) (b) (c) (d)
The IUPAC name of is
The most reactive nucleophile among the following is : (a) CH O (b) C H O
Among the following, the strongest nucleophile is : (a) C H SH (b) CH COO (c) CH NH (d) NCCH
The number of sigma electrons in toluene are
Which of the following represents the given mode of hybridisation sp -sp -sp-sp from left to right ? (a) H C CH C N