NCERT Solution for class 12 Chemistry chapter 10: Haloalkanes and Haloarenes

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NCERT Solutions for Class 12 Chemistry chapter 10 Haloalkanes and Haloarenes deals with the study of important preparation methods, physical and chemical properties and the applications of the organohalogen compounds. Some of the important topics in the Haloalkanes and Haloarenes chapter include:

Expected no. of questions: 2 to 3 questions of total 6 marks

Download PDF: NCERT Solutions for Class 12 Chemistry Chapter 10 pdf

NCERT Solutions for Class 12 Chemistry Chapter 10

NCERT Solutions for class 12 Chemistry chapter 10 are as given below.

Class 12 Chemistry Chapter 10 Haloalkanes & Haloarenes – Important Topics

Haloalkanes and Haloarenes are those hydrocarbons where one of the hydrogen-bonded to the central carbon atom is replaced by a halogen. Some examples of haloalkenes and haloarenes are chloramphenicol, chloroquine, Chlorofluorocarbon, etc.

Haloalkanes

Haloalkanes are made up of aliphatic alkanes.
The halogen atom is attached to the sp³ hybridized carbon atom of alkyl group.
Haloalkanes are saturated organic compounds and are odourless.
Haloalkanes precipitate in SN² substitution reactions.
Example: CH₃Cl (Methyl Chloride) and CH₃CH₂Br (Ethyl Bromide)

Haloarenes

Haloarenes consists of hydrocarbons with aromatic ring where one or more hydrogren is replaced by halogens.
The halogen atom is attached in the sp³ hybridized carbon atom of the alkyl group.
Haloarenes do not precipitate in SN²substitution reactions.
Haloarenes have a sweet odour.
Example: Chlorobenzene, Bromobenzene.

Also Read:

Chapter Related Links
Ester Hydrolysis	Grignard Reagent	Optical Isomerism
Haloalkanes and Haloarenes Important Questions	Paradichloro Benzene	Mitsunobu Reaction
Benzene Hexachloride	Elimination Reaction	Nucleophilic Substitution

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CBSE CLASS XII Related Questions

1.
Out of Mn$^{2+}$ and Zn$^{2+}$, which ion will be more paramagnetic and why? (Atomic numbers: Mn = 25, Zn = 30)
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2.
Predict the alkene that would be formed by dehydrohalogenation of 1-Bromo-1-methylcyclohexane.
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3.
Give structures of A, B and C: Aniline $\xrightarrow{Br_2/H_2O}$ A $\xrightarrow{NaNO_2+HCl, 0-5^\circ C}$ B $\xrightarrow{H_3PO_2+H_2O}$ C
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4.
Write mechanism of acid dehydration of ethanol to ethene.
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5.
Why is o-nitrophenol more acidic than o-methoxyphenol?
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6.
On hydrolysis, which of the following carbohydrates gives only $\mathrm{\beta}$-glucose ?
- Starch
- Sucrose
- Maltose
- Cellulose
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