Physics – Section A
Physics – Section B
|1.||To find the resistance of a given wire using metre bridge and hence determine the specific resistance of its material.|
|2.||To determine resistance per cm of a given wire by plotting a graph of potential difference versus current.|
|3.||To verify the laws of combination (series/parallel) of resistances using a metre bridge.|
|4.||To compare the emfs of two given primary cells using a potentiometer.|
|5.||To determine the internal resistance of a given primary cell using a potentiometer.|
|6.||To determine the resistance of a galvanometer by the half-deflection method and to find its figure of merit.|
|7.||To convert the given galvanometer (of known resistance of figure of merit) into an ammeter and voltmeter of desired range and to verify the same.|
|8.||To find the frequency of the ac mains with a sonometer.|
|1.||To find the value of v for different values of u in case of a concave mirror and to find the focal length.|
|2.||To find the focal length of a convex mirror, using a convex lens.|
|3.||To find the focal length of a convex lens by plotting graphs between u and v or between 1/u and 1/v.|
|4.||To find the focal length of a concave lens, using a convex lens.|
|5.||To determine the angle of minimum deviation for a given prism by plotting a graph between the angle of incidence and the angle of deviation.|
|6.||To determine the refractive index of a glass slab using a traveling microscope.|
|7.||To find the refractive index of a liquid by using (i) concave mirror, (ii) convex lens, and plane mirror.|
|8.||To draw the I-V characteristics curves of a p-n junction in forward bias and reverse bias.|
|9.||To draw the characteristics curve of a Zener diode and to determine its reverse break down voltage.|
|10.||To study the characteristics of a common-emitter NPN or PNP transistor and to find out the values of current and voltage gains.|
|1.||A. Surface Chemistry|
(a) Preparation of one lyophilic and one lyophobic sol Lyophilic sol – starch, egg albumin and gum Lyophobic sol – aluminium hydroxide, ferric hydroxide, arsenous sulphide.
(b) Dialysis of sol-prepared in (a) above.
(c) Study of the role of emulsifying agents in stabilizing the emulsion of different oils.
|2.||B. Chemical Kinetics|
(a) Effect of concentration and temperature on the rate of reaction between Sodium Thiosulphate and Hydrochloric acid.
(b) Study of reaction rates of any one of the following:
(i) Reaction of Iodide ion with Hydrogen Peroxide at room temperature using different concentrations of Iodide ions.
(ii) Reaction between Potassium Iodate, (KIO3) and Sodium Sulphite: (Na2SO3) using starch solution as an indicator (clock reaction).
|3.||C. Thermochemistry |
Any one of the following experiments
Enthalpy of dissolution of Copper Sulphate or Potassium Nitrate.
(b) Enthalpy of neutralization of strong acid (HCI) and strong base (NaOH).
(c) Determination of enthaply change during interaction (Hydrogen bond formation) between Acetone and Chloroform.
Variation of cell potential in Zn/Zn2+|| Cu2+/Cu with change in concentration of electrolytes (CuSO4 or ZnSO4) at room temperature.
|5.||E. Chromatography |
(a) Separation of pigments from extracts of leaves and flowers by paper chromatography and determination of Rf values.
(b) Separation of constituents present in an inorganic mixture containing two cations only (constituents having large difference in Rf values to be provided).
|6.||F. Preparation of Inorganic Compounds|
Preparation of double salt of Ferrous Ammonium Sulphate or Potash Alum. Preparation of Potassium Ferric Oxalate.
|7.||G. Preparation of Organic Compounds|
Preparation of any one of the following compounds
i) Acetanilide ii) Di -benzalAcetone iii) p-Nitroacetanilide iv) Aniline yellow or 2 – Naphthol Anilinedye.
|8.||H. Tests for the functional groups present in organic compounds:|
Unsaturation, alcoholic, phenolic, aldehydic, ketonic, carboxylic and amino (Primary) groups.
|9.||I. Characteristic tests of carbohydrates, fats and proteins in pure samples and their detection in given foodstuffs.|
|10.||J. Determination of concentration/ molarity of KMnO4 solution by titrating it against a standard solution of: |
(a) Oxalic acid,
(b) Ferrous Ammonium Sulphate (Students will be required to prepare standard solutions by weighing themselves).
|11.||K. Qualitative analysis|
Determination of one anion and one cation in a given salt
Pb2+, Cu2+ As3+, Al3+ , Fe3+, Mn2+, Zn2+, Ni2+, Ca2+, Sr2+, Ba2+, Mg2+, NH4+
(CO3) 2- , S2- , (SO3) 2- , (NO2) – , (SO4) 2- , Cℓ- , Br- , I- , (PO4) 3- , (C2O4) 2- , CH3COO- , NO3 – (Note: Insoluble salts excluded)