19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
The correct structure of 4-bromo-3-methyl but-1-ene is
Which of the following compounds possesses the C—H bond with the lowest bond dissociation energy?
Hybridisation states of C in + CH and CH are (a) sp & sp
Which will not show geometrical isomerism ?
The incorrect IUPAC name is (a) (b) (c) (d)
IUPAC name of is
Ethanol and dimethyl ether are
The IUPAC name of is
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
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)
The geometrical isomerism is shown by (a) (b) (c) (d)
The molecular formula of diphenyl methane is C 13H How many structural isomers are possible when one of the hydrogen is replaced by a chlorine atom?
Which of the following orders is correct for the stability of these carbocations ?
The IUPAC name of the following compound is
The type of isomerism observed in urea molecule is
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 electron…
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-orbital of…
Maximum enol content is in (a) (b) (c) (d)
How many geometrical isomers of this cyclodecene are possible ?
Correct order of basicity of various nitrogen in