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Engineering

Q.51. What volume of hydrogen gas at STP would be liberated by action of 50 mL of H2SO4H_2SO_4 of 50% purity (density = 1.3 g mL⁻¹) on 20 g of zinc ? Given : Molar mass of H, O, S, Zn are 1, 16, 32, 65 g mol⁻¹ respectively.