Q.

During the electrolysis of molten sodium chloride, the time required to produce 0.10 mol of chlorine gas using a current of 3 Amperes.

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answer is 2.

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Detailed Solution

During the electrolysis of molten sodium chloride, At cathode :2Na++2e-⟶2Na At anode :2Cl-⟶Cl2+2e- Net reaction : 2Na++2Cl-⟶2Na+Cl2 According to Faraday's first law of electrolysis, w=Z×I×tw=E96500×I×t No.of moles of Cl2 gas × Mol.wt.of Cl2 gas = Eq. wt. of Cl2gas×I×t965000.10×71=35.5×3×t96500t=0.10×71×9650035.5×3=6433.33sect=6433.3360 min=107.22 min≈110 min

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