Chlor -alkali process: When electricity is passed through an aqueous solution of sodium chloride, it decomposes to form sodium hydroxide, chlorine gas and hydrogen gas.
• When electricity is passed through the solution of sodium chloride, it splits up into sodium ions and chloride ion.
• Sodium ion combines with the hydroxyl ion of water to form sodium hydroxide.
• Chloride ions lose electron at anode and form chlorine atom.
• Two chlorine atoms combine to form a chlorine molecule.
• H of water gains electron at cathode and change into hydrogen atom.
Which of the following gases is produced at the Anode in the chlor-alkali process? | |||
Right Option : D | |||
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Which of the following are correct : (a) Hydrogen is used for making ammonia, which is further used for making fertilizers. (b) Chlorine is a very good disinfecting agent. Thus, it is used for treating drinking water and water in swimming pools. (c) When electricity is passed through an aqueous solution of sodium chloride, it decomposes to form sodium hydroxide, chlorine gas and hydrogen gas. | |||
Right Option : D | |||
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In which of the following sodium hydroxide is used ? | |||
Right Option : A | |||
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