Frank ICSE Solutions for Class 10 Chemistry – Analytical Chemistry

PAGE NO : 75
Solution 1:

  1. Cuprous salts = Colourless
  2. Cupric salts = Blue
  3. Aluminium salts = Colourless
  4. Ferrous salts= Light green
  5. Ferric salts = Yellow
  6. Calcium salts = Colourless

Solution 2:
Frank ICSE Solutions for Class 10 Chemistry - Analytical Chemistry 1

Solution 3:
Frank ICSE Solutions for Class 10 Chemistry - Analytical Chemistry 2

Solution 4:
K2SO4.

Solution 5:
Frank ICSE Solutions for Class 10 Chemistry - Analytical Chemistry 3

Solution 6:
Frank ICSE Solutions for Class 10 Chemistry - Analytical Chemistry 4

Solution 7:
Frank ICSE Solutions for Class 10 Chemistry - Analytical Chemistry 5

Solution 8:
Frank ICSE Solutions for Class 10 Chemistry - Analytical Chemistry 6

Solution 9:
Examples of amphoteric hydroxides are: Zn(OH)2, Al(OH)3.

Solution 10:
Frank ICSE Solutions for Class 10 Chemistry - Analytical Chemistry 7

Solution 11:
Frank ICSE Solutions for Class 10 Chemistry - Analytical Chemistry 8

PAGE NO : 76
Solution 12:
Frank ICSE Solutions for Class 10 Chemistry - Analytical Chemistry 9

Solution 13:
The chloride of a metal which is soluble in excess of ammonium hydroxide is zinc chloride i.e. ZnCl2.

Solution 14:
Frank ICSE Solutions for Class 10 Chemistry - Analytical Chemistry 10

Solution 15:

  1. PbO
  2. Al2O3
  3. Na2ZnO2

Solution 16:

  1. transition, Cr3+, Fe2+, MnO44-.
  2. Zn(OH)2
  3. NH4Cl
  4. Al2O3, Al
  5. NH4OH

Solution 1992-1:

  1. Addition of KCN
  2. Addition of excess of NaOH.
  3. Addition of excess ofNH4OH

Solution 1993-1:
Frank ICSE Solutions for Class 10 Chemistry - Analytical Chemistry 11

PAGE NO : 77
Solution 1995-1:

  1. The metal ion present in solution A is Pb2+
    .
  2. The cation present in solution B is Cu2+. The probable colour of solution B is blue.

Solution 1996-1:
Frank ICSE Solutions for Class 10 Chemistry - Analytical Chemistry 12

Solution 1996-2:
The solutions for the tests will be prepared by dissolving the given powders separately in water.

  1. Solution of Calcium carbonate:
    Calcium carbonate is CaCO3 and contains Ca2+ ions. Sodium hydroxide solution NaOH can be used to identify Ca2+ since its addition to calcium carbonate solution will give white precipitates of Ca(OH)which are sparingly soluble in excess of NaOH.
  1. Solution of Lead carbonate:
    Lead carbonate is PbCO3and contains Pb2+ ions. Ammonium hydroxide solution NH4OH can be used to identify Pb2+ since its addition to lead carbonate solution will give white precipitates of Pb(OH)2 which are insoluble in excess of NH4OH.
  2. Solution of Zinc carbonate:
    Zinc carbonate is ZnCOand contains Zn2+ ions. Sodium hydroxide solution NaOH can be used to identify Zn2+ since its addition to zinc carbonate solution will give white gelatinous precipitates of Zn(OH)which are soluble in excess of NaOH.

Solution 1996-3:
Frank ICSE Solutions for Class 10 Chemistry - Analytical Chemistry 13

Solution 1997-1:
Frank ICSE Solutions for Class 10 Chemistry - Analytical Chemistry 14

Solution 1998-1:
Frank ICSE Solutions for Class 10 Chemistry - Analytical Chemistry 15

Solution 1999-1:
Frank ICSE Solutions for Class 10 Chemistry - Analytical Chemistry 16

Solution 2000-1:
Frank ICSE Solutions for Class 10 Chemistry - Analytical Chemistry 17

PAGE NO : 78
Solution 2001-1:
Frank ICSE Solutions for Class 10 Chemistry - Analytical Chemistry 18

Solution 2003-1:
Frank ICSE Solutions for Class 10 Chemistry - Analytical Chemistry 19

Solution 2003-2:
Frank ICSE Solutions for Class 10 Chemistry - Analytical Chemistry 20

Solution 2004-1:
Frank ICSE Solutions for Class 10 Chemistry - Analytical Chemistry 21

PAGE NO : 79
Solution 2005-1:

  1. B and E (Iron (II) sulphate and Magnesium sulphate)
  2. C and F (Iron (III) chloride and Zinc chloride)
  3. D (Lead nitrate)
  4. A (Copper nitrate)
  5. F (Zinc chloride)

Solution 2006-1:
Frank ICSE Solutions for Class 10 Chemistry - Analytical Chemistry 22

Solution 2009-1:
C ( Aluminium oxide)

Solution 2009-2:

  1. P is Ferric chloride
  2. Q is an ammonium salt
  3. R is ferrous sulphate

Solution 2009-3:

  1. When BaCl2
  2.  solution is added to the given solution ZnSO4
  3. gives a white precipitate while no precipitate is obtained with ZnClsolution.
  4. When NaOH solution is added to the given solution, iron (II) chloride gives dirty green precipitate while reddish brown precipitate is obtained with iron(III) chloride.

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