SCIENCE
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Cu2+ and Cl-and H+ and OH-
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Cu2+ and H+
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Cl-and OH-
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Cu2+
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Detailed explanation-1: -Copper(II) ions and hydrogen ions are attracted to the negative cathode. Copper is below hydrogen in the electrochemical series, and so it is the copper which accepts electrons from the cathode.
Detailed explanation-2: -The electrolysis will only take place when electricity is passed through the copper chloride solution. The positive copper(II) ions Cu2+ (from copper sulfate) and the H+ ions (from water) are attracted to the negative cathode.
Detailed explanation-3: -In copper electrolysis, when a current is applied, positively-charged copper ions (called cations) leave the anode (positive electrode) and move toward the cathode (negative electrode).
Detailed explanation-4: -Water is a poor conductor of electricity, but it does contain some hydrogen ions, H +, and hydroxide ions, OH-. These ions are formed when a small proportion of water molecules naturally dissociate .
Detailed explanation-5: -Thus, Cu will be deposited at cathode and Cl2 will be liberated at anode.