Electrochemistry · Class 12 · CBSE · Science Chemistry
The standard reduction potentials for M^{2+}/M and N^{2+}/N electrodes are -0.76text{ V} and +0.34text{ V} respectively. When the two electrodes are…
Practice question from Electrochemistry (Class 12 · CBSE · Science Chemistry), with the correct answer and a step-by-step solution.
easy · MCQ · Q-1FDF96
The standard reduction potentials for and electrodes are and respectively. When the two electrodes are connected to form a galvanic cell:
- A.M acts as cathode and N acts as anode.
- B.M acts as anode and N acts as cathode.Correct answer
- C.Both M and N act as anodes.
- D.Both M and N act as cathodes.
Solution
The electrode with the lower standard reduction potential for M undergoes oxidation and acts as the anode. The electrode with the higher standard reduction potential for N undergoes reduction and acts as the cathode.
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