The VD of gas is 11.2. The volume occupied by 11.2g of this gas at NTP is:

Options

A. 22.4 L
B. 11.2 L
C. 1 L
D. 2.2 L

Explanation

To solve the problem step by step, we will follow these steps:

### Step 1: Understand the given data
- The vapor density (VD) of the gas is given as 11.2 g/L.
- We need to find the volume occupied by 11.2 g of this gas at Normal Temperature and Pressure (NTP).

**Hint:** Remember that vapor density is related to molecular mass.

### Step 2: Calculate the molecular mass of the gas
- The molecular mass (M) of a gas can be calculated using the formula:
\[ M = 2 \times \text{VD} \]
- Substitute the given vapor density:
\[ M = 2 \times 11.2 = 22.4 \text{ g/mol} \]

**Hint:** Molecular mass is important for determining how much volume a certain mass of gas will occupy.

### Step 3: Use the ideal gas law at NTP
- At NTP (Normal Temperature and Pressure), 22.4 g of any ideal gas occupies 22.4 liters.
- Therefore, we can set up a proportion to find the volume occupied by 11.2 g of the gas.

**Hint:** Use the concept of direct proportionality to relate mass and volume.

### Step 4: Set up the proportion
- If 22.4 g of gas occupies 22.4 liters, then:
\[ \text{Volume occupied by 11.2 g} = \left( \frac{22.4 \text{ L}}{22.4 \text{ g}} \right) \times 11.2 \text{ g} \]

**Hint:** This is a unitary method where you find out how much volume corresponds to a different mass.

### Step 5: Calculate the volume
- Performing the calculation:
\[ \text{Volume} = \left( \frac{22.4}{22.4} \right) \times 11.2 = 11.2 \text{ L} \]

**Hint:** Check your calculations to ensure accuracy.

### Final Answer
The volume occupied by 11.2 g of the gas at NTP is **11.2 liters**.