According to the Faraday Law of electrolysis, the mass deposited at electrode proportional to:

Options

A. `m prop I^(2)`
B. `m prop Q`
C. `m prop Q^(2)`
D. m does not depend on Q

Answer

To solve the question regarding Faraday's Law of electrolysis, we will follow these steps:

### Step-by-Step Solution:

1. **Understanding Faraday's First Law of Electrolysis**:
- Faraday's First Law states that the mass (M) of a substance deposited at an electrode during electrolysis is directly proportional to the quantity of electricity (Q) that passes through the electrolyte.

2. **Expressing the Relationship Mathematically**:
- We can express this relationship mathematically as:
\[ M \propto Q \]
- This means that if we increase the quantity of electricity (Q), the mass (M) deposited will also increase proportionally.

3. **Identifying the Correct Option**:
- From the options provided in the question:
- A) Mass is proportional to \( I^2 \)
- B) Mass is proportional to \( Q \)
- C) Mass is proportional to \( Q^2 \)
- D) Mass does not depend on \( Q \)
- Based on our understanding from step 1 and 2, we conclude that the correct option is:
\[ \text{B) Mass is proportional to } Q \]

### Final Answer:
The mass deposited at the electrode is proportional to the quantity of electricity (Q) passed through the electrolyte.

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