General Science Questions

• Amalgams are
• LPG consists of mainly
• Potassium Permanganate is used for purifying drinking water, because
• Which metal pollute the air of a big city?
• The main constituents of pearls are
• Which of the following does not contain a coinage metal?
• Actinides are the elements with atomic numbers from
• Which of the following metals remain in liquid for under normal conditions?
• Bell metal is an alloy of
• Sodium metal is kept under
• Quartz crystals normally used in quartz clocks etc. is chemically
• The chemical (ethyl mercaptan) added to the otherwise odourless LPG cooking gas for imparting a detectable smell to the gas is a compound of
• The property of a substance to absorb moisture from the air on exposure is called
• Permanent hardness of water can be removed by adding
• Monazite is an ore of
• Which of the following is an element?
• The filament of an electric bulb is made of
• Which of the following is used as a lubricant?
• The gas usually filled in the electric bulb is
• Non stick cooking utensils are coated with