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Question


Electrodes are immersed in water and electric current is passed through it. Which of the following statements is correct?


Options:
A .   Oxygen bubbles will be formed at the electrode which is connected to the negative terminal of the battery
B .   Hydrogen gas will be formed at the electrode which is connected to the positive terminal of the battery
C .   No gas is formed at any electrode
D .   Hydrogen gas will be formed at the electrode which is connected to the negative terminal of the battery
Answer: Option D
:
D
H+ ions move towards the electrode which is connected to the negative terminal of the battery, gain electrons and get released as H2 gas. 2H++2eH2

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