Read the given passage and answer the questions.
P, Q and R are three elements which undergo chemical reactions according to the following equations.
(i) `P_(2)O_(3) +2Q to Q_(2)O_(3) +2P`
(ii) `3RSO_(4) +2Q to Q_(2)(SO_(4))_(3) +3R`
(iii) `3RO +2P to P_(2) O_(3) +3R`
The type of reaction is:

Options

A. Displacement reaction
B. Combination reaction
C. Neutralisation reaction
D. Substitution reaction

Explanation

To determine the type of reactions represented by the given equations, we will analyze each equation step by step.

### Step 1: Analyze the First Reaction
The first reaction is:
\[ P_2O_3 + 2Q \rightarrow Q_2O_3 + 2P \]

In this reaction, \( P_2O_3 \) is reacting with \( Q \) to produce \( Q_2O_3 \) and \( P \). Here, \( Q \) is displacing \( P \) from \( P_2O_3 \). This indicates that \( Q \) is more reactive than \( P \). This type of reaction is known as a **displacement reaction**.

### Step 2: Analyze the Second Reaction
The second reaction is:
\[ 3RSO_4 + 2Q \rightarrow Q_2(SO_4)_3 + 3R \]

In this case, \( Q \) is displacing \( R \) from \( RSO_4 \) to form \( Q_2(SO_4)_3 \) and \( R \). Again, this indicates that \( Q \) is more reactive than \( R \). This is also a **displacement reaction**.

### Step 3: Analyze the Third Reaction
The third reaction is:
\[ 3RO + 2P \rightarrow P_2O_3 + 3R \]

Here, \( P \) is displacing \( R \) from \( RO \) to form \( P_2O_3 \) and \( R \). This shows that \( P \) is more reactive than \( R \). This is yet another example of a **displacement reaction**.

### Conclusion
All three reactions involve one element displacing another from a compound, which is characteristic of displacement reactions. Therefore, the type of reaction for all three equations is **displacement reaction**.

### Final Answer
The type of reaction is: **Displacement Reaction**

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