The most reactive metal is ___________.

Options

A. Iron
B. Gold
C. Zinc
D. Potassium

Answer

To determine the most reactive metal from the given options, 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 on the list, the more reactive it is.

### Step 2: Identify the Given Options
The options provided are:
- A) Iron
- B) Gold
- C) Zinc
- D) Potassium

### Step 3: Locate Each Metal in the Reactivity Series
Using the reactivity series:
1. Potassium is at the top, indicating it is the most reactive.
2. Sodium follows potassium.
3. Calcium comes next.
4. Magnesium is after calcium.
5. Zinc is below magnesium.
6. Iron is placed even lower.
7. Gold is at the bottom of the series, indicating it is the least reactive among these metals.

### Step 4: Compare the Reactivity of the Metals
From the reactivity series, we can see:
- Potassium (most reactive)
- Zinc (less reactive than potassium)
- Iron (less reactive than zinc)
- Gold (least reactive)

### Step 5: Conclude the Most Reactive Metal
Since potassium is at the top of the reactivity series, it is the most reactive metal among the options provided.

### Final Answer
The most reactive metal is **Potassium** (Option D).

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