NCERT Solutions For Class 11 Chemistry Chapter 12: Organic Chemistry Some- Basic Principles and Techniques

NCERT Solutions for class 11 Chemistry Chapter 12 Organic Chemistry – Some Basic Principles and Techniques are provided in this article. Some of the important topics in this chapter includes:

Expected number of questions: 5 to 7 questions of total 11 marks

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NCERT Solutions for Class 11 Chemistry Chapter 12

NCERT Solutions for Class 11 Chemistry Chapter 12 Organic Chemistry is given below.

Class 11 Chemistry Chapter 12 Organic Chemistry – Important Topics

Organic Chemistry is a branch of chemistry that deals with the study of hydrocarbons and their derivatives. The primary constituents of hydrocarbons include carbon and hydrogen.

The different types of saturated hydrocarbons include:

Saturated Hydrocarbons
Unsaturated Hydrocarbons
Aliphatic Hydrocarbons
Aromatic Hydrocarbons

Properties of Hydrocarbons:

Hydrocarbons are colourless in nature.
Aromatic hydrocarbons are sweet smelling.
The number of carbon atoms in a hydrocarbon determines its boiling point.
Hydrocarbons are nonpolar which means they are insoluble in water.
Methane is present in gaseous form at room temperature.
Alkanes are saturated hydrocarbons in contrast with alkenes and alkynes.

Reactions of Hydrocarbon:

Substitution Reaction
Addition Reaction
Combustion Reaction

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CBSE CLASS XII Related Questions

1.
A reaction \( \mathrm{A \rightarrow B} \) follows second order kinetics. How will the rate of reaction be affected if the concentration of (i) A is increased by three times, and (ii) A is reduced to half ?
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2.
The chelating ligand used for the treatment of lead poisoning is :
- Ethane-1,2-diamine
- Oxalate ion
- Dimethylglyoxime
- EDTA
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3.
An organic compound (X) has the molecular formula \(C_5H_{10}O\). Draw structures for (X) if it:
(I) does not give Tollen's test but gives a positive iodoform test.
(II) does not give Tollen's test and iodoform test but undergoes Aldol condensation.
(III) undergoes Cannizzaro's reaction.
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4.
Following reaction takes place in one step:

\(2A + B \rightarrow 2C\)

How will the rate of above reaction change if the volume of the reaction vessel is decreased to one third of its original volume? Will there be any change in the order of reaction with the reduced volume?
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5.
Which of the following curve represents the first order reaction?
- A
- B
- C
- D
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6.
Conductivity of \( 2.5 \times 10^{-4} \) M methanoic acid solution is \( 5.25 \times 10^{-5} \) S cm\(^{-1}\).
(a) Calculate its molar conductivity.
(b) Calculate its degree of dissociation.
[Given : \( \lambda^{\circ}_{(\mathrm{H^+})} = 349.5 \) S cm\(^2\) mol\(^{-1}\) and \( \lambda^{\circ}_{(\mathrm{HCOO^-})} = 50.5 \) S cm\(^2\) mol\(^{-1}\)]
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