List of top Chemistry Questions on Organic Chemistry asked in CBSE CLASS XII

Identify A, B, and C in the following reactions:
oxidation of a methyl group in toluene (C6H5CH3)

Alkyl halides undergoing nucleophilic bimolecular substitution reaction involve: 

Write the products of the following reactions:

Which is the correct IUPAC name for
$\text{CH}_3$
Write any two differences between SN\(_1\) and SN\(_2\) reactions. Which of the following compounds would undergo SN\(_1\) reaction faster and why?
SN1 and SN2 reactions.
Can sodium ethoxide and t-butyl chloride be used for the preparation of t-butyl ethyl ether? Give suitable explanation. Justify your answer by suggesting the appropriate starting material required for preparation of t-butyl ethyl ether.
Identify A and B in each of the following reaction sequence:
(a) \[ CH_3CH_2Cl \xrightarrow{NaCN} A \xrightarrow{H_2/Ni} B \]
(b) \[ C_6H_5NH_2 \xrightarrow{NaNO_2/HCl} A \xrightarrow{C_6H_5NH_2} B \]

Why is chlorobenzene resistant to nucleophilic substitution reactions?

The reagent that can be used to convert benzenediazonium chloride to benzene is:
Out of 2-Bromobutane, 1-Bromobutane, 2-Bromopropane and 1-Bromopropane, the molecule which is chiral in nature is:
In the given reaction sequence, the structure of Y would be:
aniline (C6H5NH2)
Assertion (A): Acetanilide is less basic than aniline.
Reason (R): Acetylation of aniline results in decrease of electron density on nitrogen.
Williamson synthesis of preparing unsymmetrical ether is:
Which one of the following amines gives an alcohol on reaction with HNO₂?
Assertion (A): Boiling point of (CH₃)₃N is higher than that of CH₃CH₂CH₂NH₂.
Reason (R): Hydrogen bonding is more extensive in CH₃CH₂CH₂NH₂.
Which by-product is obtained in the manufacture of phenol from cumene ?
The conversion of phenol to salicylic acid can be accomplished by
Alkenes are formed by heating alcohols with conc. H$_2$SO$_4$. The first step in the reaction is:
Assertion (A): n-Butyl chloride has higher boiling point than n-Butyl bromide.
Reason (R): C—Cl bond is more polar than C—Br bond.
Hofmann Bromamide degradation reaction is given by:
Assertion (A): Hydrolysis of an ester follows first order kinetics.
Reason (R): The concentration of water does not get altered much during the reaction.
Which reagents are required for one step conversion of chlorobenzene to toluene?
Which of the following compounds would be hydrolyzed by aqueous KOH most easily?
In the Hinsberg method for separation of primary, secondary, and tertiary amines, the reagent used is:
Pyranose ring of glucose is formed due to the reaction between: