19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
CH CH CH CH
CH CH C CH
Acetylenic hydrogens are acidic because
The product A, is (a) (b) (c) (d)
Among the following, the aromatic comopound is: (a) (b) (c) (d)
The compound X in the reaction, (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?
The type of isomerism observed in urea molecule is
The most reactive nucleophile among the following is : (a) CH O (b) C H O
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 of the following represents the correct order of the acidity in the given compounds ?
Correct order of basicity of various nitrogen in
Which will not show geometrical isomerism ?
How many geometrical isomers of this cyclodecene are possible ?
Maximum enol content is in (a) (b) (c) (d)
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…
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 : Tropylium cation is aromatic in nature. Reason :The only property that determines its aromatic behaviour is planar structure.
Assertion: NF is a weaker ligand than N CH . Reason: NF ionizes to give Fions in aqueous solution.
Which of the following represents the given mode of hybridisation sp -sp -sp-sp from left to right ? (a) H C CH C N
The number of sigma electrons in toluene are
Among the following, the strongest nucleophile is : (a) C H SH (b) CH COO (c) CH NH (d) NCCH
The IUPAC name of is