NCERT Solutions for class 12 Chemistry Chapter 2: Solutions

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NCERT Solutions for class 12 chemistry chapter 2: Solutions are provided in this article which includes important formulas, chemical equations and numericals. Some of the important topics of Class 12 Chemistry Chapter 2 Solutions include:

Expected No. of questions: 2 to 4 questions of 1 to 5 marks

Download PDF: NCERT Solutions for Class 12 Chemistry Chapter 2 pdf

NCERT Solutions for Class 12 Chemistry Chapter 2

The NCERT solutions for class 12 chemistry chapter 2: Solutions is given below in pdf as well as image form.

NCERT Solutions for Class 12 Chemistry Chapter 2: Solutions – Important Topics

A Solution is a homogeneous mixture of two or more chemically non-reacting substances whose composition can be varied within certain limits. A solution is regarded as a simple phase having more than one component.

Types of Solutions: Based on the states of matter, solutions can be divided into solid solutions, liquid solutions and gaseous solutions.

Solid Solutions: The solvent is in solid state

Liquid Solutions: The solvent is in liquid state

Gaseous Solutions: The solvent is in gaseous state

Solubility: The amount of solute that can dissolve in a solvent to form a solution is called solubility. Solubility depends on factors like temperature, pressure, nature of solvent and solute.

Unsaturated Solution: A solution in which more solute can be added at a given temperature.

Saturated Solution: A solution in which no more solute can be added at a given temperature.

Supersaturated solution: A solution in which more solute than the limited amount is present at a given temperature.

Concentration of Solution: The ratio of the solute to the solvent is known as concentration of a solution

Henry’s Law: Henry’s Law states that the partial pressure (p) of the gas in the vapour phase is proportional to the mole fraction (x) of the gas in the solution. Mathematically,

p = K_H. x

Raoult’s Law: Raoult’s Law states that the Partial vapour pressure of every component in a solution is directly proportional to the mole fraction of that component. Mathematically,

P = P₀X

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CBSE CLASS XII Related Questions

1.
Why are magnesium blocks attached to iron water pipelines?

View Solution

2.
Why is o-nitrophenol more acidic than o-methoxyphenol?

View Solution

3.
What happens when: (a) Propanenitrile is treated with phenyl magnesium bromide followed by hydrolysis? (b) p-Fluorotoluene is treated with $CrO_3$ in presence of acetic anhydride followed by hydrolysis with aqueous acid? (c) Phthalic acid is treated with $NH_3$ followed by heating?

View Solution

4.
For decomposition of $H_2O_2$ by $I^-$: Step I: $H_2O_2 + I^- \rightarrow H_2O + IO^-$ (slow). Step II: $H_2O_2 + IO^- \rightarrow H_2O + I^- + O_2$ (fast). (a) Write rate law. (b) Determine order w.r.t. $H_2O_2$ and $I^-$ and overall order. (c) Molecularity of Step II.

View Solution

5.
Predict the alkene formed by dehydrohalogenation of 1-Bromo-1-methylcyclohexane.

View Solution

6.
What happens when acidic solution of potassium permanganate is allowed to stand for sometime ? Give the equation involved. What is this type of reaction called ?

View Solution

NCERT Solutions for class 12 Chemistry Chapter 2: Solutions

Download PDF: NCERT Solutions for Class 12 Chemistry Chapter 2 pdf

NCERT Solutions for Class 12 Chemistry Chapter 2

NCERT Solutions for Class 12 Chemistry Chapter 2: Solutions – Important Topics

CBSE CLASS XII Related Questions

1.
Why are magnesium blocks attached to iron water pipelines?

2.
Why is o-nitrophenol more acidic than o-methoxyphenol?

3.
What happens when: (a) Propanenitrile is treated with phenyl magnesium bromide followed by hydrolysis? (b) p-Fluorotoluene is treated with $CrO_3$ in presence of acetic anhydride followed by hydrolysis with aqueous acid? (c) Phthalic acid is treated with $NH_3$ followed by heating?

4.
For decomposition of $H_2O_2$ by $I^-$: Step I: $H_2O_2 + I^- \rightarrow H_2O + IO^-$ (slow). Step II: $H_2O_2 + IO^- \rightarrow H_2O + I^- + O_2$ (fast). (a) Write rate law. (b) Determine order w.r.t. $H_2O_2$ and $I^-$ and overall order. (c) Molecularity of Step II.

5.
Predict the alkene formed by dehydrohalogenation of 1-Bromo-1-methylcyclohexane.

6.
What happens when acidic solution of potassium permanganate is allowed to stand for sometime ? Give the equation involved. What is this type of reaction called ?

Similar Chemistry Concepts

Comments

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NCERT Solutions for class 12 Chemistry Chapter 2: Solutions

Download PDF: NCERT Solutions for Class 12 Chemistry Chapter 2 pdf

NCERT Solutions for Class 12 Chemistry Chapter 2

NCERT Solutions for Class 12 Chemistry Chapter 2: Solutions – Important Topics

CBSE CLASS XII Related Questions

1.Why are magnesium blocks attached to iron water pipelines?

2.Why is o-nitrophenol more acidic than o-methoxyphenol?

3.What happens when: (a) Propanenitrile is treated with phenyl magnesium bromide followed by hydrolysis? (b) p-Fluorotoluene is treated with $CrO_3$ in presence of acetic anhydride followed by hydrolysis with aqueous acid? (c) Phthalic acid is treated with $NH_3$ followed by heating?

4.For decomposition of $H_2O_2$ by $I^-$: Step I: $H_2O_2 + I^- \rightarrow H_2O + IO^-$ (slow). Step II: $H_2O_2 + IO^- \rightarrow H_2O + I^- + O_2$ (fast). (a) Write rate law. (b) Determine order w.r.t. $H_2O_2$ and $I^-$ and overall order. (c) Molecularity of Step II.

5.Predict the alkene formed by dehydrohalogenation of 1-Bromo-1-methylcyclohexane.

6.What happens when acidic solution of potassium permanganate is allowed to stand for sometime ? Give the equation involved. What is this type of reaction called ?

Similar Chemistry Concepts

Comments

SUBSCRIBE TO OUR NEWS LETTER

1.
Why are magnesium blocks attached to iron water pipelines?

2.
Why is o-nitrophenol more acidic than o-methoxyphenol?

3.
What happens when: (a) Propanenitrile is treated with phenyl magnesium bromide followed by hydrolysis? (b) p-Fluorotoluene is treated with $CrO_3$ in presence of acetic anhydride followed by hydrolysis with aqueous acid? (c) Phthalic acid is treated with $NH_3$ followed by heating?

4.
For decomposition of $H_2O_2$ by $I^-$: Step I: $H_2O_2 + I^- \rightarrow H_2O + IO^-$ (slow). Step II: $H_2O_2 + IO^- \rightarrow H_2O + I^- + O_2$ (fast). (a) Write rate law. (b) Determine order w.r.t. $H_2O_2$ and $I^-$ and overall order. (c) Molecularity of Step II.

5.
Predict the alkene formed by dehydrohalogenation of 1-Bromo-1-methylcyclohexane.

6.
What happens when acidic solution of potassium permanganate is allowed to stand for sometime ? Give the equation involved. What is this type of reaction called ?