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Which gas is prepared by fractional distillation of air?
Answer: A. He He gas is prepared by fractional distillation of air.
Answer: A. He
He gas is prepared by fractional distillation of air.
See lessOne molecule of sulphur contains how many number of atoms?
Answer: D. 8 One molecule of sulphur contains 8 number of atoms.
Answer: D. 8
One molecule of sulphur contains 8 number of atoms.
See lessWhich furnace can be used to get temperature above 3000°C?
Answer: B. Arc furnace Arc furnace can be used to get temperature above 3000°C.
Answer: B. Arc furnace
Arc furnace can be used to get temperature above 3000°C.
See lessElectrolysis is used in:
Answer: C. Both A and B Electrolysis is used in both electroplating and electrorefining.
Answer: C. Both A and B
Electrolysis is used in both electroplating and electrorefining.
See lessTo obtain chromium from chromic oxide the method used is:
Answer: C. Aluminothermic process To obtain chromium from chromic oxide the method used is aluminothermic process.
Answer: C. Aluminothermic process
To obtain chromium from chromic oxide the method used is aluminothermic process.
See lessAluminothermic process is used for the extraction of metals, whose oxides are:
Answer: B. Not easily reduced by carbon Aluminothermic process is used for the extraction of metals, whose oxides are not easily reduced by carbon.
Answer: B. Not easily reduced by carbon
Aluminothermic process is used for the extraction of metals, whose oxides are not easily reduced by carbon.
See lessMetals occurs in the native from because of their:
Answer: C. Low reactivity Metals occurs in the native form because of their low reactivity.
Answer: C. Low reactivity
Metals occurs in the native form because of their low reactivity.
See lessWhich process is used for the extraction of metals from their sulphide ores?
Answer: D. Roasting Roasting process is used for the extraction of metals from their sulphide ores.
Answer: D. Roasting
Roasting process is used for the extraction of metals from their sulphide ores.
See lessSpecific gravity of slag is:
Answer: B. Always higher than molten metal Specific gravity of slag is always higher than molten metal.
Answer: B. Always higher than molten metal
Specific gravity of slag is always higher than molten metal.
See lessThe process of removal of gangue particles from ores is known as:
Answer: A. Concentration The process of removal of gangue particles from ores is known as concentration.
Answer: A. Concentration
The process of removal of gangue particles from ores is known as concentration.
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