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Give reason:
Reactions involving Grignard reagent must be carried out under anhydrous condition.
Concept: Reaction with Active Metals
Give reason:
Alkyl halides are generally not prepared by free radical halogenation of alkanes.
Concept: Methods of Preparation of Alkyl Halides
Complete the following reaction sequence by writing the structural formulae of the organic compound 'A', 'B' and 'C'.
\[\ce{2-Bromobutane->[Alc.KOH]A->[][Br2]B->[][NaNH2]C}\]
Concept: Chemical Properties
The following will react faster by SN1 mechanism
Concept: Chemical Properties
Name the reagent used to convert alkyl halide to ester.
Concept: Methods of Preparation of Alkyl Halides
Explain. Aryl halides are less reactive than alkyl halides towards nucleophilic substitution reactions.
Concept: Chemical Properties
Explain optical activity of 2-chlorobutane.
Concept: Optical Isomerism in Halogen Derivatives
How are the following conversions carried out?
propene to 2-nitropropane
Concept: Uses and Environmental Effects of Some Polyhalogen Compounds
How are the following conversions carried out?
benzene to biphenyl
Concept: Uses and Environmental Effects of Some Polyhalogen Compounds
Write the equations for the preparation of ethyl chloride using
- Hydrogen halide
- ethene
- Thionyl chloride
Which of these methods is preferred and why?
Concept: Uses and Environmental Effects of Some Polyhalogen Compounds
What is dehydrohalogenation? State the rule for the formation of the preferred product of dehydrohalogenation.
Concept: Chemical Properties
Observe the following compounds and answer the questions given below.
(I)
\[\ce{\underset{\text{(II)}}{CH3 - CH2 - Br}}\]
- Identify the type of halides.
- Explain the nature of the C – Br bond in both of these halides.
- Which of these compounds will undergo aqueous alkaline hydrolysis readily? Write the reaction in support of your answer.
Concept: Hydrocarbons: Alkanes >> Reactions of Haloalkanes - Elimination Reactions
Write the product formed when alkyl halide reacts with silver nitrite.
Concept: Chemical Properties
What is the action of following on ethyl bromide:
Na in dry ether
Concept: Reaction with Active Metals
Write chemical reactions for the following conversions:
Bromobenzene to toluene.
Concept: Reaction with Active Metals
Write IUPAC names of following compounds.
Concept: Nomenclature of Halogen Derivatives
Write IUPAC names of following compounds.
Concept: Nomenclature of Halogen Derivatives
The allylic halide, among the following, is ______.
Concept: Classification of Halogen Derivatives
Write the chemical reaction for the following:
Chlorobenzene is heated with fuming H2SO4.
Concept: Reaction with Active Metals
Write the structure of the product formed when chlorobenzene is treated with sodium metal in the presence of dry ether.
Concept: Reaction with Active Metals
