NCERT Solutions For Class 12 Chemistry Chapter 5: Surface Chemistry

Jasmine Grover logo

Jasmine Grover

Education Journalist | Study Abroad Lead

NCERT Solutions for Class 12 Chemistry Chapter 5 Surface Chemistry deals with the concepts of catalysis, adsorption, and colloids that comprise gels and emulsions. Some of the important topics of Class 12 Surface Chemistry chapter include:

  1. Surface Chemistry
  2. Adsorption
  3. Colloids
  4. Emulsions
  5. Catalysis
  6. Properties of Colloids

As this topic has been omitted from the new CBSE Class 12 syllabus, no questions can be expected from this chapter. But it proves to be useful for other competitive examinations.

Download PDF: NCERT Solutions for Class 12 Chemistry Chapter 5 Surface Chemistry


NCERT Solutions for Class 12 Chemistry Chapter 5

The NCERT Solutions for class 12 Chemistry chapter 5 are as given below. 

NCERT Solutions

NCERT Solutions

NCERT Solutions

NCERT Solutions

NCERT Solutions

NCERT Solutions

NCERT Solutions

NCERT Solutions

NCERT Solutions

NCERT Solutions

NCERT Solutions

NCERT Solutions

NCERT Solutions

NCERT Solutions


Class 12 Chemistry Chapter 5 Surface Chemistry – Important Topics

Surface Chemistry is the study of the various phenomenon that takes place over chemical surfaces.
  • Adsorption: The process of attraction and aggregation of the molecules of a substance on the surface of a solid is known as adsorption.
  • Corrosion: The process through which the refined unstable metals convert themselves into more stable compounds is known as corrosion.
  • Crystallization: The type of technique that is used in order to purify the substances to separate solids from liquids is known as crystallization

Emulsions are colloidal solutions where both the dispersion medium and dispersed phase are in liquid state. They can be either oil in water or water in oil emulsions.

Surface chemistry finds its application in the process of Catalysis, Chromatography and Colloidal formations.


Also Read:

Check-Out: 

CBSE CLASS XII Related Questions

  • 1.
    Which of the following curve represents the first order reaction?

      • A
      • B
      • C
      • D

    • 2.
      Draw the structure of 'X' in the following reaction:


        • 3.
          Consider the decomposition of hydrogen peroxide \( (\mathrm{H_2O_2}) \) as per the equation given below : \[ 2\mathrm{H_2O_2} \xrightarrow[\text{Alkaline medium}]{I^-} 2\mathrm{H_2O} + \mathrm{O_2} \] The mechanism for this reaction was found to be : Step I : \( \mathrm{H_2O_2} + I^- \longrightarrow \mathrm{H_2O} + IO^- \) (slow) Step II : \( \mathrm{H_2O_2} + IO^- \longrightarrow \mathrm{H_2O} + I^- + \mathrm{O_2} \) (fast) (a) Write the rate law expression. (b) Determine the order of reaction with respect to \( \mathrm{H_2O_2} \), \( I^- \) and overall order of reaction. (c) What is the molecularity of the reaction in Step II ?


            • 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?


                • 5.

                  (i) A first order reaction is 20% complete in 10 minutes. Calculate the time taken when 80% of the reaction will be completed.

                  [Given : log 5 = 0.7, log 4 = 0.6]

                  (ii) For a chemical reaction \( \mathrm{R \rightarrow P} \), variation in \( \ln[\mathrm{R}] \) vs. time (t) graph is given below :

                  (I) Predict the order of the reaction.

                  (II) Write the slope of the curve.




                    • 6.
                      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.

                        CBSE CLASS XII Previous Year Papers

                        Comments


                        No Comments To Show