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Haloalkanes and Haloarenes — Practice Quiz

ICSE · Class 12 · Chemistry

Try a 4-question quiz on Haloalkanes and Haloarenes for ICSE Class 12 Chemistry: tap an answer to check it and see why.

104 questions38 flashcards13 formulas & key relations5 concepts

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Quick Quiz: Haloalkanes and Haloarenes

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1

The general formula of haloalkanes (monohalogen derivatives of alkanes) is:

2

Chloroethane (CH3CH2Cl) is classified as:

3

2-chloro-2-methylpropane is classified as:

4

The IUPAC name of CH3CH2CH2Br is:

104 Questions·
multiple choice

Sample Questions

1multiple choice

Which of the following is the correct IUPAC name for (CH3)2CHCH2Cl?

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1-chloro-2-methylpropane

Parent chain: propane (3C). Cl on C1, methyl group on C2. IUPAC: 1-chloro-2-methylpropane. List substituents alphabetically: chloro before methyl. Common name: iso-butyl chloride (not IUPAC).

2multiple choice

Which reagent is preferred for preparing alkyl chlorides from alcohols and WHY?

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SOCl2 — byproducts are gases that escape

R-OH + SOCl2 → R-Cl + SO2↑ + HCl↑. Both byproducts (SO2 and HCl) are gases and escape from reaction mixture, leaving pure R-Cl. With PCl5, POCl3 remains as liquid byproduct requiring separation.

3multiple choice

The Finkelstein reaction involves:

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Conversion of RCl/RBr to RI using NaI in acetone

Finkelstein reaction: R-Cl + NaI → R-I + NaCl (in dry acetone). NaCl precipitates in acetone (insoluble) → equilibrium shifts to products. Used to prepare iodoalkanes which are hard to make directly.

4multiple choice

The boiling points of haloalkanes with the same alkyl group follow the order:

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RF < RCl < RBr < RI

BP increases with atomic mass of halogen (RF < RCl < RBr < RI) because larger halogens have stronger van der Waals forces. Example: CH3F (194.6K) < CH3Cl (248.8K) < CH3Br (276.6K) < CH3I (315.4K).

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Frequently Asked Questions

What are the important topics in Haloalkanes and Haloarenes for ICSE Class 12 Chemistry?
Key topics in Haloalkanes and Haloarenes include Classification and Nomenclature, Preparation of Haloalkanes, Physical Properties and Nature of C-X Bond, Chemical Properties of Haloalkanes. Study these first, then practise questions on each for the ICSE Class 12 board exam.
How many practice questions are there for Haloalkanes and Haloarenes?
There are 104 questions on Haloalkanes and Haloarenes. Try the 4-question sample quiz on this page first; each answer shows an explanation when you tap it.

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Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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