CH-503: Physical Chemistry Practical – I

1. Refractometry: (Any Two)

Experiment No. 1 
To determine the molecular or molar refractivity of the given liquids A, B, C and D.
Experiment No. 2 
To determine the specific refractivities of the given liquids A and B and their mixture and hence determine the percentage composition of their mixture C.
Experiment No. 3 
To determine the molar refraction of homologues methyl, ethyl and propyl alcohol and show the constancy contribution to the molar refraction by -CH2 group.
Experiment No. 4 
Determine the refractive index of a series of salt solutions and determine the concentration of a salt of unknown solution.

2. Spectrophotometry and Colorimetry (Any Three)

Experiment No. 1 
To determine the amount of copper present in the given solution of copper sulphate by colorimetric titration method using standard EDTA solution
Experiment No. 2 
To determine the indicator constant of methyl red indicator.
Experiment No. 3 
To determine the concentration of given unknow n solution of Fe3+ using ammonium thiocyanate at 540 nm by colorimetric method.
Experiment No. 4 
To determine the concentration of given unknow n solution of Cobalt solution using R-Nitroso salt at 520 nm by colorimetric method.
Experiment No. 5 
To determine the order of reaction for the oxidation of alcohol by potassium dichromate and potassium permanganate in acidic medium calorimetrically.
Experiment No. 6 
Simultaneous determination of Cu2+ and Ni2+ ions by colorimetry/spectrophotometry method.

3. Conductometry (Any Four)

Experiment No. 1 
To determine the concentration of a strong acid and a weak acid present in a mixture.
Experiment No. 2 
To determine the velocity constant of hydrolysis of ethyl acetate by NaOH solution by conduct metric method.
Experiment No. 3 
To determine the normality of citric acid in given fruit by titrating it against standard NaOH solution by conductometric method.
Experiment No. 4 
To determine λ∞ of strong electrolyte (NaCl or KCl) and to verify Onsager equation
Experiment No. 5 
To estimate the amount of lead present in given solution of lead nitrate by conductometric titration with sodium sulphate.
Experiment No. 6 
To determine the relative strength of monochloro acetic acid and acetic acid conductometrically

4. Viscosity: (Any One)

Experiment No. 1 
To determine the molecular weight of a high polymer by using solutions of different concentrations.
Experiment No. 2 
Determine the radius of glycerol molecule from viscosity measurement.

5. Photoflurometry

Experiment No. 1 
Analysis of Riboflavin from vitamin supplementary capsules/syrup / tablet sample by Photoflurometry

6. Table work

Experiment No. 1 
Analysis of the given vibration -rotation spectrum of HCl(g)

CH-506: Inorganic Chemistry Practical-I

A. Gravimetric estimations (Any 3)

Experiment No. 1 
Gravimetric estimation of Fe as Fe2O3
Experiment No. 2 
Gravimetric estimation of Barium as BaSO4 using homogeneous precipitation method.
Experiment No. 3 
Gravimetric estimation of Nickel as Ni – DMG.
Experiment No. 4 
Analysis of sodium bicarbonate from mixture by thermal decomposition method.
Experiment No. 5 
Determination of Water of crystallization in barium chloride by thermal decomposition.
Experiment No. 6 
Analysis of Food/Pharmaceutical sample for ash and sulphated ash

B. Inorganic preparations (Any 3)

Preparation of inorganic complexes and spot tests for metal ions and ligands:

Experiment No. 1 
Preparation of hexamminenickel(II) chloride, [Ni (NH3)6]Cl2.
Experiment No. 2 
Preparation of Potassium trioxalatoferrate(III), K3[Fe(C2O4)3].
Experiment No. 3 
Preparation of Manganese (III) acetylacetonate, [Mn(acac)3].
Experiment No. 4 
Preparation of Potassium tris (glycinato) nickelate(II), [Ni(gly)3]-
Experiment No. 5 
Preparation of Potassium dioxalatocuprate(II), [Cu(C2O4)2]2-.

C. Inorganic Qualitative Analysis (6 Expts.)

Experiment No. 1 
Inorganic Qualitative analysis (5 mixtures) [1 simple water soluble mixture, 2 mixtures containing borates and 2 mixtures containing phosphates] Experiment No. 2 
Limit test for iron, chloride and sulphate from pharmaceutical raw materials.
OR
Experiment No. 2 
Qualitative and confirmatory tests of inorganic toxicants of any four ions (Borate, copper, hypochlorite or nitrate or nitrite, Sb or Bi, Iodate, H2O2)

CH-509: organic Chemistry Practical-I

A. Separation of Binary Mixtures and Qualitative Analysis (Any Six)

Experiment No. 1 
a) Solid-Solid (3 Mixtures) b) Solid-Liquid (2 Mixtures) c) Liquid-Liquid (1 Mixture) At least one mixture from each of the following should be given-Acid-Base, Acid- Phenol, AcidNeutral, Phenol-Base, Phenol-Neutral, Base-Neutral and Neutral- Neutral. (Solid-solid mixtures must be insoluble in water)

B) Preparations

a) Green Chemistry Preparations (Any Two)

Experiment No. 1 
Preparation of dibenzalpropanone from benzaldehyde and acetone using LiOH.H2O/NaOH
Experiment No. 2 
Nitration of phenol or substituted phenols using CaNO3.
Experiment No. 3 
Bromination of acetanilide from ceric ammoniu m nitrate (CAN) and potassium bromide (KBr).

b) Organic Preparations (Any Two)
Experiment No. 1 
Preparation of 1, 4- dihydropyrimidinone from ethyl acetoacetate, benzaldehyde and urea using oxalic acid as catalyst.
Experiment No. 2 
Preparation p-Iodonitrobenzene from p-Nitroaniline by Sandmeyer Reaction.
Experiment No. 3 
Preparation P-chlorobenzoic acid and p-chlorobenzyl alcohol from p-chloro benzaldehyde.

c) Preparations of Organic Derivative (Any Two)

Experiment No. 1 
Preparation of Amide derivative of Carboxylic acid
Experiment No. 2 
Preparation of glucosazone from Glucose
Experiment No. 3 
Preparation of Paracetamol from p-Aminophenol