9. Ores are roasted to a) Dehydrate the ore b) Remove CO₂ and H₂O d) Fuse the ore c) Remove Sulphur and arsenic 10. The

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9 Ores Are Roasted To A Dehydrate The Ore B Remove Co And H O D Fuse The Ore C Remove Sulphur And Arsenic 10 The 1 (31.13 KiB) Viewed 18 times

9. Ores are roasted to a) Dehydrate the ore b) Remove CO₂ and H₂O d) Fuse the ore c) Remove Sulphur and arsenic 10. The IUPAC name of CH₂-C = CHCH₂ C₂Hs a) 2-ethylbutane b) 2-ethyl but-2-ene c) 3-methylpent-2-ene d) 2-ethylpent-2-ene 11. The mass of oxygen gas whose volume is 320 ml at 17°C and 2 atmospheric pressure is a) 0.745 gm b) 0.848 gm c) 0.932 gm d) 0.52 gm