Which of these metals will react most vigrously with oxgyen ?

Options

A. Tin
B. Mercury
C. Calcium
D. Aluminium

Answer

To determine which metal reacts most vigorously with oxygen, we can follow these steps:

### Step 1: Understand the Reactivity Series
The reactivity series is a list of metals arranged in order of decreasing reactivity. The higher a metal is in the series, the more vigorously it reacts with other substances, including oxygen.

### Step 2: Identify the Metals in the Options
Assuming the options provided in the question include metals such as Calcium, Magnesium, Aluminum, and Iron, we need to evaluate their positions in the reactivity series.

### Step 3: Compare the Reactivity of the Metals
- **Calcium (Ca)**: Calcium is a highly reactive metal and is located high in the reactivity series. It reacts vigorously with oxygen to form calcium oxide.
- **Magnesium (Mg)**: Magnesium is also reactive but not as much as calcium.
- **Aluminum (Al)**: Aluminum reacts with oxygen but forms a protective oxide layer that can inhibit further reaction.
- **Iron (Fe)**: Iron reacts with oxygen but is less reactive compared to calcium and magnesium.

### Step 4: Conclusion
Based on the reactivity series, calcium is the metal that will react most vigorously with oxygen. Therefore, the answer to the question is **Calcium**.

### Final Answer:
Calcium reacts most vigorously with oxygen.

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