CH-103 : Chemistry Practical

SECTION-1: CHEMICAL AND LAB SAFETY (Compulsory)

Practical No. 1 
Toxicity of compounds used in chemistry laboratory.
Practical No. 2 
Safety symbol on labels of pack of chemicals and its meaning.
Practical No. 3 
MSDS Sheets and Its use for Handling Hazardous Chemicals
Practical No. 4 
Precautions in Handling Hazardous Substances in Laboratory.

SECTION-II: PHYSICAL CHEMISTRY

a) Thermochemistry (Any Three)
Practical No. 1 
To determination of heat capacity of calorimeter for different volumes.
Practical No. 2 
To determination of enthalpy of neutralization of hydrochloric acid with sodium hydroxide.
Practical No. 3 
To determine the enthalpy of ionization of acetic acid.
Practical No. 4 
To determine the integral enthalpy of solution of salts (KNO3/NH4Cl).
Practical No. 5 
To determine of enthalpy of hydration of copper sulphate.
Practical No. 6 
To study of the solubility of benzoic acid in water and determination of ΔH.
b) Ionic equilibria (Any Two)
Practical No. 7 
1. To measure pH of solutions like aerated drinks, fruit juices, shampoos and soaps using pH-meter.
OR
Practical No. 8 
1. Measurement of the pH of buffer solutions and comparison of the values with theoretical values.
2. Prepare the different buffer solutions of sodium acetate-acetic acid and determine its buffer capacity
OR
2. Prepare the different buffer solutions of NH4Cl- NH4OH- and determine its buffer capacity.

SECTION-III: ORGANIC CHEMISTRY (Five experiments)

Practical No. 1 
To determine type and detection of extra elements (N, S, Cl, Br, I) in any Three organic compounds
(Containing up to two extra elements)
Practical No. 2 
Separation of constituents of mixtures by paper chromatography: (Any Two).
(a) Identify and separate the components of a given mixture of two amino acids by paper chromatography and measure the Rf value. (Glycine, aspartic acid, glutamic acid, tyrosine or any two amino acids / pigments from plant extract / two organic compounds)
(b) Identify and separate the sugars in mixture by paper chromatography and measure the Rf value.

CH-203: Chemistry Practical

SECTION-1: INORGANIC CHEMISTRY

I) Synthesis of Commercially Imp. Inorganic Compounds (Any Two)
Practical No. 1 
Synthesis of potash alum from aluminium metal (scrap Aluminium metal).
Practical No. 2 
Synthesis of Mohr’s salt Ferrous ammonium sulphate hexahydrate (FAS).
Practical No. 3 
Preparation of Dark red inorganic pigment: (Cu2O)
Practical No. 4 
Synthesis of FeSO4•7H2O

II) Volumetric Analysis (Any Two)

Practical No. 5
Estimation of sodium carbonate and sodium hydrogen carbonate present in a mixture.
Practical No. 6 
Estimation of basicity of boric acid or oxalic acid or citric acid hence determination of their equivalent weight.
Practical No. 7 
Estimation of water of crystallization in Mohr’s salt by titrating with KMnO4.

III) Analysis Of Commercial Products (Any Two)

Practical No. 8 
To determine the amount of calcium from given calcium tablet by complexometric titrationn
Practical No. 9 
To determine acid neutralizing capacity of antacids like Gelusil tablet/Gelusil syrup.
Practical No. 10 
To determine the amount of copper from sample of brass alloy by iodometrically
IV) To draw polar plots of s and p orbitals
Practical No. 11 
To sketch the polar plots of S and P orbital’s

SECTION-II: ORGANIC CHEMISTRY

I] Organic Purification Techniques (Two experiments from each technique)

Practical No. 1 
Purification of organic compounds by- i) crystallization (from water and alcohol) ii) distillation, iii) Sublimation
Organic Preparations: Derivatives (Any Two)
Practical No. 1 
Bromination of Cinnamic acid using Sodium bromide and Sodium bromate.
(Green Chemistry Approach) OR
Practical No. 1 
Bromination of acetanilide using KBr and Ceric ammonium nitrate in aqueous medium
Practical No. 2 
Semicarbazone derivatives of aldehydes and ketones
OR
Oxime Oxime or 2,4-Dinitrophenylhydrazone derivative of aldehyde/ketone
APENDIX-I: Polar Graph Paper
APENDIX-II: STOCK SOLUTIONS