NCERT Solutions For Class 12 Chemistry Chapter 5: Surface Chemistry

Jasmine Grover logo

Jasmine Grover

Education Journalist | Study Abroad Strategy 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.
    According to Werner's theory, the primary valencies of the central metal atom :

      • are satisfied by neutral molecules or negative ions.
      • are equal to its coordination number.
      • are satisfied by negative ions.
      • are non-ionisable.

    • 2.
      Predict the products of electrolysis in each of the following: (i) An aqueous solution of CuCl$_2$ with platinum electrodes. (ii) A concentrated solution of H$_2$SO$_4$ with platinum electrodes.


        • 3.
          (I) Which of the following is more reactive towards S$_N$1 reaction: 2-Bromo-2-methylbutane or 1-Bromopentane (II) What type of halide is present in the following compound: \[ \begin{array}{c} CH_3-CH-C=CH_2\\ |\\ CH_3 \end{array} \] \[ | \] \[ Cl \] (III) Why is chloroform stored in dark coloured bottles? (ii) Define the following terms: (I) Ambident Nucleophiles (II) Racemic mixture


            • 4.
              (I) Why do transition metals show variable oxidation states? (II) Out of Mn$^{2+}$ and Ti$^{2+}$ which will be more paramagnetic and why? Atomic No.: Ti = 22, Mn = 25 (III) Which ion is the strongest oxidising agent in the options given below: \[ Cr^{3+},\ V^{3+},\ Mn^{3+} \] Atomic No.: Cr = 24, V = 23, Mn = 25 (ii) Complete and balance the following equations: (I) \[ 2MnO_2+4KOH+O_2\rightarrow ? \] (II) \[ 5C_2O_4^{2-}+2MnO_4^-+16H^+\rightarrow ? \]


                • 5.
                  A solution is prepared by dissolving 0.025 g of potassium sulphate in 2 L of water at 27$^\circ$C. Assuming potassium sulphate is completely dissociated, determine its osmotic pressure. Given: \[ R=0.082 \, L\,atm\,K^{-1}mol^{-1} \] \[ \text{Molar mass of }K_2SO_4=174\,g\,mol^{-1} \] (ii) What type of azeotrope will be formed by a solution of acetone and chloroform? Give reason.


                    • 6.
                      The following reactions occur at the anode during the electrolysis of aqueous sodium chloride solution: \[ Cl^-_{(aq)} \rightarrow \frac{1}{2}Cl_2(g)+e^- \qquad E^\circ_{\text{cell}}=1.36\,V \] \[ 2H_2O(l) \rightarrow O_2(g)+4H^+(aq)+4e^- \qquad E^\circ_{\text{cell}}=1.23\,V \] Which reaction is feasible at the anode and why?

                        CBSE CLASS XII Previous Year Papers

                        Comments


                        No Comments To Show