Lakhmir Singh Solutions Class 10 Chemistry Solutions for Exercise in Chapter 3 - Chapter 3 Metals and Non Metals
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(a) Name the chemical compound which is electrolysed in molten state to obtain aluminium metal. Which gas is evolved during this process?
(b) Name the chemical compound which is electrolysed in molten state to obtain sodium metal. Which gas is produced in this process ?
(c) Name the gas produced when calamine ore is calcined.
(d) Name the gas evolved when cinnabar ore is roasted.
(a) Aluminium oxide is electrolyzed in a molten state to obtain aluminium metal. Oxygen gas evolves during the process.
(b) Sodium chloride is electrolyzed in a molten state to obtain sodium metal. Chlorine gas evolves during this process.
(c) Carbon dioxide is produced when calamine ore is calcined.
(d) Sulphur dioxide gas evolves when cinnabar ore is roasted.
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