Question 1 :
Which is/are the important raw material(s) required in cement industry?
Question 2 :
Which type of fire extinguisher is used for petroleum fire?
Question 3 :
Which of the following is commonly called a 'polyamide'?
Question 4 :
Epoxy resins are used as
Question 5 :
Detergents used for cleaning clothes and utensils contain?
Question 6 :
Which of the following is used for removing air bubbles from glass during its manufacture?
Question 7 :
Which of the following is a protein?
Question 8 :
Wood is the main raw material for the manufacture of
Question 9 :
Rayon is chemically
Question 10 :
Optic fibres are mainly used for which of the following?
Question 11 :
The major ingredient of leather is
Question 12 :
What are the soaps?
Question 13 :
How does common salt help in separating soap from the solution after saponification?
Question 14 :
In vulcanisation, natural rubber is heated with
Question 15 :
Deep blue colour is imparted to glass by the presence of
Question 16 :
Glass is made of the mixture of
Question 17 :
The vast resources of unutilised natural gas can be used in the production of
Question 18 :
Paper is manufactured by
Question 19 :
Gypsum is added to cement clinker to
Question 20 :
Soap is a mixture of sodium or potassium salts of
Question 21 :
The type of glass used in making lenses and prisms is
Question 22 :
Which one of the following is the petroleum wax?
Paraffin wax is obtained from petroleum by dewaxing light lubricating oil stocks. It is used in candles, wax paper, polishes, cosmetics, and electrical insulators. It assists in extracting perfumes from flowers, forms a base for medical ointments, and supplies a waterproof coating for wood. In wood and paper matches, it helps to ignite the matchstick by supplying an easily vaporized hydrocarbon fuel.