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Chemistry
3. Metal and Non-Metal
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Q55 of 400 Page 192

Name the gas evolved when cinnabar ore is roasted.

Sulphur dioxide

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55 Name the chemical compound which is electrolyzed in molten state to obtain sodium metal. Which gas is produced in this process ? 55 Name the gas produced when calamine ore is calcined. 56 Name two metals which are found in nature mainly in the free state (as metallic elements). 56 Name two metals which are always found in combined state.
Questions · 400
3. Metal and Non-Metal
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