Which is/are the important raw material(s) required in cement industry?
Which type of fire extinguisher is used for petroleum fire?
Powder type extinguisher is used for petroleum fire as petroleum is combustible.
Which of the following is commonly called a 'polyamide'?
Epoxy resins are used as
Detergents used for cleaning clothes and utensils contain?
Which of the following is a protein?
Wood is the main raw material for the manufacture of
Rayon is chemically
Optic fibres are mainly used for which of the following?
Which of the following is used for removing air bubbles from glass during its manufacture?
The major ingredient of leather is
What are the soaps?
How does common salt help in separating soap from the solution after saponification?
In vulcanisation, natural rubber is heated with
Deep blue colour is imparted to glass by the presence of
Glass is made of the mixture of
The vast resources of unutilised natural gas can be used in the production of
Paper is manufactured by
Gypsum is added to cement clinker to
Soap is a mixture of sodium or potassium salts of