The polymer used in making plastic crockery is:
- (A) Decron
- (B) Nylon
- (C) Bakelite
- (D) Melamine
- (D) Melamine
Which set of the following gases is called Nobel Gases?
- (A) Helium, Neon and Argon
- (B) Nitrogen, Argon and Neon
- (C) Argon, Helium and Hydrogen
- (D) Helium, Neon and Carbon dioxide
- (A) Helium, Neon and Argon
The most important ore of aluminum is:
- (A) Bauxite
- (B) Galena
- (C) Calcite
- (D) Calamine
- (A) Bauxite
Which of the following is not an ore of aluminum?
- (A) Feldspar
- (B) Cryolite
- (C) Bauxite
- (D) Azurite
- (D) Azurite
Brass gets discolored in air due to constant exposure in presence of:
- (A) Aluminum phosphide
- (B) Hydrogen sulphide
- (C) Hydrogenated wafers
- (D) Aluminum sulphide
- (B) Hydrogen sulphide
The raw material used for the manufacture of Glass and Cement is:
- (A) Clay
- (B) Gypsum
- (C) Washing Soda
- (D) Limestone
- (D) Limestone
Ultra purification of a metal is done by:
- (A) Leaching
- (B) Zone melting
- (C) Smelting
- (D) Slugging
- (B) Zone melting
What is the other name of plaster of Paris?
- (A) Calcium chloride
- (B) Calomel
- (C) Mercurous chloride
- (D) Blue vitriol
- (C) Mercurous chloride
Which of the following is not an isotope of hydrogen?
- (A) Tritium
- (B) Deuterium
- (C) Protium
- (D) Yttrium
- (D) Yttrium
The main constituents of _______ are carbon carbonate and magnesium carbonate.
- (A) Ruby
- (B) Pearl
- (C) Sapphire
- (D) Diamond
- (B) Pearl
Pages: Page 1, Page 2, Page 3, Page 4, Page 5, Page 6, Page 7, Page 8, Page 9, Page 10, Page 11, Page 12, Page 13, Page 14, Page 15, Page 16, Page 17, Page 18, Page 19, Page 20, Page 21, Page 22, Page 23, Page 24, Page 25, Page 26, Page 27, Page 28, Page 29, Page 30, Page 31, Page 32, Page 33, Page 34, Page 35, Page 36, Page 37, Page 38, Page 39, Page 40, Page 41