imp.questions for Diploma Students ( Diploma Chemisty)

Unit-1Explain Rutherfords atomic model with its limitations

Explain Bohrs atomic model with its limitations

Give difference between  orbit and orbita

Write short note on  Aufbau principal and Hunds rule

Give electronic configuration of Cu and Cr

Write short note on   -a .atomic number b.atomic mass  c. isotopes  d. isobars

What do you mean by radioactivity .give its applications .

Write short note on   .a. Half life period  b. Group displace ment theory   c. Radio carbon dating

Give difference between nuclear fission and fussion

Unit- 2  Surface chemistry and its applications

What do you mean by colloids ? Explain main types of it ( lyo phobic and lyo phillic )

Write short note on  

a.       Mechanical dispersion    b. Electrolytic dispersion   c. peptization  d.

What do you mean by dialysis and electro dialysis

Write short note on tyndal effect and Brownian motion

Give details of gel and emulsion

Give applications of colloids

 Unit- 3 Electro chemistry

What doy mean by conducter ? Explain main type of it

Explain Faradays law of electrolysis

What do you mean by electroplating ? Give factors affecting of it.

Write short note on

a.       Molecular conductance  b. Equivalent conductance  c. Ohms law   d. Resistance

 Unit -4  Colligative properties

What is Raoults law  ? give mathematical impression 

Give difference between ideal and non ideal solution

Give difference between positive and negative deviation

What do you mean  by  colligative  properties .Explain all four

Explain Berkeley and hartly’s method for determination of Osmotic pressure

Write short note on

a.       Internal energy     b. Enthalpy  c. Entropy  d.  Gibbs free energy

Unit – 5 Chemical bonding and catalysis

 What do you mean by hydrogen bond ? Give main types of it

What do you mean by catalyst ? Explain main type of  it

What are the applications of catalyst .

What do you mean by electrovalent or ionic bond.

Write short note on

a.       Covalent bond  b. co ordinate bond  c. Octate rule  d. luwis structure.

  Unit – 6   Water

 What is hardness of water ? give types of hardness of water .

Explain limesoda process

Explain Zeolite process

Write short note on

a.       Sludge and Scale  b.  BOD and COD  e. Unts of hardness

 Unit – 7 Metals and alloys

Give physical and chemical properties of metals

Explain concentration methods of ores (gravitational separation , Froth flotation ,magnetic separation etc.)

Give difference between ore and mineral

Explain Blastfurnace with digram and chemical reactions

Give the name of  ores of Fe,Al,Cu

Explain purification method of Al

Give the use ,properties and percentage constitution of Cu and Fe

Give the properties and uses of Al, Cu and Fe

Unit 0-8   Ionisation and PH velue

What do you mean by PH velue

What do you mean by buffer solution ? explain main types of  it .

Explain corrosion and factors affecting it.

Explain protection methods of corrosion.

Write short note on galvanization

Unit-9 Glass , Cement and refractory

Explain manufacturing of glass

What is port land cement ? Explain manufacturing of port land  cement

What do you mean by refractory ? Give main types of  it.

Give uses of refractory and cement.

Unit -10 High poly mer

What is polymer ? Explain with example.

What is plastic ? Explain thermo plastic and thermo setting

Write short note on

a.PVC   b. Polythene  c. Nylon-66  d.Bakelite  e. Poly ester  f. Vulcanistion of rubber

Unit -11 lubricant ,Paint and varnishes

What do you mean by lubricant ? Give classification of lubricants .

Explain mechanism of lubrication .(Three theories Thick film ,thin film etc.)

Explain properties of lubricants .

Give main uses of paint and varnishes

Unit -12 Fuels and Fire Expinguishers

What is fues? Explain main types of fues.

Write short note on calorific velue ,gross calorific velue and net calorific velue .

Explain bomb calorimeter .with labeled diagram

Explain refining of petrol or fractiona distillation of petrol

What is Explosive  ? give properties and  types of Explosive .

Give uses of Expolosives

 Uit -13  Pollution and control

 What is chemical toxicology ?

Write shot note on

a.       Air pollution b. Water pollution 

What is acid rain ?

Give name of important pollutant and harm full effects of pollutents.

 Ram kishore upadhyay 

VITM -Gwl