The electric charge for electrode deposition of one gram equivalent of a substance is:

Options

A. One ampere per second
B. 96,500 coulombs per second
C. One ampere for one hour
D. Charge on one mole of electrons

Explanation

To determine the electric charge required for the electrode deposition of one gram equivalent of a substance, we can follow these steps:

### Step 1: Understand the Concept of Equivalent Weight
The equivalent weight of a substance is defined as the mass of the substance that will combine with or displace one mole of hydrogen or half a mole of oxygen. For electrochemistry, one gram equivalent corresponds to the amount of substance that can gain or lose one mole of electrons during a redox reaction.

### Step 2: Relate Charge to Moles of Electrons
The charge required to deposit one gram equivalent of a substance can be calculated using Faraday's laws of electrolysis. According to Faraday's first law, the amount of substance deposited is directly proportional to the quantity of electric charge passed through the electrolyte.

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