The most convenient method to protect the bottom of the ship made of iron is

Options

A. (a) coating it with red lead oxide
B. (b) white tin plating
C. (c )connecting it with Mg block
D. (d )connecting it with Pb block

Explanation

To solve the question regarding the most convenient method to protect the bottom of a ship made of iron, we need to consider the principles of electrochemistry, specifically the concept of corrosion and the reactivity series of metals. Here’s a step-by-step solution:

### Step 1: Understand the Problem
Iron is prone to rusting (corrosion) when exposed to moisture and oxygen. Therefore, we need to find a method to protect the iron bottom of the ship from rusting.

**Hint:** Consider the properties of metals and their tendency to corrode.

### Step 2: Identify the Method of Protection
One effective method to protect iron from rusting is to use a coating of another metal that is less reactive than iron. This can prevent moisture and oxygen from reaching the iron surface.

**Hint:** Think about how different metals react with oxygen and moisture.

### Step 3: Use the Reactivity Series
To select a suitable metal for coating, we refer to the reactivity series. Metals that are more reactive than iron will corrode first, protecting the iron. Conversely, metals that are less reactive can be used as coatings.

**Hint:** Recall the order of metals in the reactivity series and their electrode potentials.

### Step 4: Analyze the Reactivity Series
In the reactivity series, metals like magnesium and zinc are positioned above iron, meaning they are more reactive and can be used to protect iron. Metals like tin and lead are below iron and are not suitable for this purpose.

**Hint:** Compare the electrode potentials of the metals in the series.

### Step 5: Conclusion
Based on the analysis, the most convenient method to protect the bottom of the ship made of iron is to coat it with magnesium or zinc. Therefore, the correct answer is the option that includes either magnesium or zinc.

**Hint:** Look for options that mention magnesium or zinc as protective coatings.

### Final Answer
The most convenient method to protect the bottom of the ship made of iron is to coat it with magnesium or zinc.