📚NCERT Questions — CBSE12
275 solved questions with detailed explanations
What is the role of pyridine in the acylation of amines?
Consider the following compounds: (I) CH₃CH₂CH₂CH₂Br, (II) (CH₃)₂CHCH₂Br, (III) CH₃CH₂CH(Br)CH₃, (IV) (CH₃)₃CBr. Arrange them in decreasing order of reactivity towards SN1 reaction.
Arrange the following compounds in increasing order of their boiling points: n-Butane, Methoxyethane, Propanal, Propan-1-ol.
Why are aldehydes generally more reactive than ketones in nucleophilic addition reactions?
Which of the following compounds will undergo Aldol condensation?
What is the chemical nature of almost all enzymes?
Which starting material is used to prepare phenol via the diazonium salt method?
In electrophilic substitution reactions of haloarenes, the halogen atom is deactivating but ortho-, para-directing. This is because:
Which isomer of nitrophenol is steam volatile due to intramolecular hydrogen bonding?
Which of the following reagents is used in the Rosenmund reduction for the preparation of aldehydes from acyl chlorides?