CHEMISTRY LAB ACTIVITY BOOK (With FREE Practical Based MCQ Booklet)
Hardbound, Class 12th
1.1 To prepare a sample of colloidal solution of starch (or starch solution.)
1.2 To prepare a sample of colloidal solution of egg albumin.
1.3 To prepare a sample of colloidal solution of gum.
1.4 To prepare a sample of ferric hydroxide sol.
1.5 To prepare a sample of aluminium hydroxide sol.
1.6 To prepare a sample of arsenious sulphide sol.
1.7 To purify a starch solution containing NaCl as impurity by the process of dialysis through a cellophane or parchment paper.
1.8 To study the role of emulsifying agents in stabilizing the emulsions of different oils.
2.1 To study the effect of concentration on the rate of reaction between sodium thiosulphate and hydrochloric acid.
2.2 To study the effect of temperature on the rate of reaction between sodium thiosulphate and hydrochloric acid.
2.3 To study the effect of concentration of iodide ions on the rate of reaction between iodide ions and hydrogen peroxide at room temperature using different concentrations of iodide ions.
2.4 To study the effect of concentration and temperature on the rate of reaction between potassium iodate and sodium sulphite using starch as indicator (clock reaction).
3.1 To determine enthalpy of dissolution of potassium nitrate (or copper sulphate) in water.
3.2 To determine heat of neutralization of hydrochloric acid with sodium hydroxide solution.
3.3 To determine enthalpy change during interaction (hydrogen bond formation) between acetone and chloroform.
4.1 To study the variation of cell potential in Zn/Zn2+||Cu2+/Cu with change in concentration of electrolytes (CuSO4 or ZnSO4) at room temperature.
5.1 To separate the coloured components in the given flower juice by paper chromatography and determine their Rf values.
5.2 To separate the constituents of the given inorganic mixture containing Cu2+ and Cd2+ ions by paper chromatography.
5.3 To separate Co2+ and and Ni2+ ions in a given mixture by paper chromatography.
SECTION–F-:-Preparation of Inorganic Compounds
6.1 To prepare crystals of ferrous ammonium sulphate (Mohr’s salt)
6.2 To prepare crystals of Potash alum, K2SO4.Al2(SO4)3.24H2O.
6.3 To prepare a sample of potassium ferric oxalate.