7. An electrolysis cell was constructed with two platinum electrodes in a 1.00 M

Question

7. An electrolysis cell was constructed with two platinum electrodes in a 1.00 M aqueous solution of KCI, An odorless gas evolves from one electrode, and a gas with a distinctive odor evolves from the other electrode. Choose the correct from the following list. (A) The gas with the distinctive odor was evolved at the anode (B) The gas with the distinctive odor was evolved at the negative electrode (C) The odorless gas was evolved at the positive electrode (D The odorless gas was evolved at the anode statement

Explanation / Answer

Ans: A

distinctive odour gas = Cl2 deposited at Anode(positive electrode)

odourless = H2 deposited at cathode ( Negative electrode)

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