Halogen Derivatives
Maharashtra Board · Class 12 · Chemistry
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Quick Quiz: Halogen Derivatives
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What is the IUPAC name of CH₃-CH(Cl)-CH₂-CH₃?
The order of reactivity of alkyl halides towards nucleophilic substitution is:
Which carbon atom is chiral in 2-chlorobutane?
In SN2 mechanism, the nucleophile attacks from:
Sample Questions
Which of the following are methods to prepare alkyl halides from alcohols?
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Reaction with HX (hydrogen halides), Reaction with phosphorus halides (PX₃, PCl₅), Reaction with thionyl chloride (SOCl₂)
Alcohols can be converted to alkyl halides using HX/ZnCl₂, phosphorus halides, or SOCl₂. Sodium metal and Grignard reagents are used for other reactions.
Which type of alkyl halide is most reactive in SN1 reaction?
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Tertiary (3°)
Tertiary carbocations are most stable due to +I effect and hyperconjugation, making tertiary halides most reactive in SN1.
The reaction R-X + AgF → R-F + AgX is known as:
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Swartz reaction
Swartz reaction involves preparation of alkyl fluorides by treating alkyl halides with metal fluorides like AgF.
Which of the following show optical activity?
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2-Chlorobutane, 2-Bromobutane
Compounds with chiral carbons (four different groups) show optical activity. 1-chlorobutane and 2-chloro-2-methylpropane lack chiral centers.
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