Q65Short answer
Two ores A and B were taken. On heating ore A gives CO2 whereas, ore B gives SO2. What steps will you take to convert them into metals? METALS AND NON-METALS 27
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Since ore A gives CO2 and ore B gives SO2. Therefore, ores are MCO3 and MS. A can be obtained Calcination → MO + CO2 MCO3 ⎯⎯⎯⎯⎯⎯⎯ MO + C Reduction → M + CO ⎯⎯⎯⎯⎯⎯⎯ B can be obtained Roasting 2MS + 3O2 ⎯⎯⎯⎯⎯⎯ → 2MO + 2SO2 MO + C → M + CO 130 E XEMPLAR P ROBLEMS – SCIENCE %*#26'4 ANSWERS /WNVKRNG%JQKEG3WGUVKQPU