Which of the following does not contain a coinage metal?
A). Silver and Gold
B). Zinc and Gold
C). Copper and Silver
D). Copper and Gold
Balloons are filled with
A). Nitrogen
B). Helium
C). Oxygen
D). Argon
Production of chlorofluorocarbons (CFC) gas which is proposed to be banned in India, is used in which of the following domestic products?
A). Television
B). Refrigerator
C). Tube light
D). Cooking gas
Air is a/an:
A). Compound
B). Element
C). Electrolyte
D). Mixture
LPG consists of mainly:
A). Methane, Ethane and Hexane
B). Ethane, Hexane and Nonane
C). Methane, Hexane and Nonane
D). Methane, Butane and Propane