Match the flame colours of the alkaline earth metal salts in the Bunsen burner .
`{:((p), "Calcium" ,1., "Brick red") , ((q) , "Strontium" , 2., "Apple"), ((r), "Barium" , 3., "Crimson"):}`

Options

A. p-1 , q - 3 , r-2
B. p-3 , q - 1 , r-2
C. p-2 , q -3 , r - 1
D. p-1 , q-2 , r-3

Explanation

To solve the problem of matching the flame colors of alkaline earth metal salts in a Bunsen burner, we need to identify the correct flame color associated with each metal. Here’s the step-by-step solution:

### Step 1: Identify the flame color for Calcium
- **Calcium (Ca)**: When burned in a flame, calcium salts produce a **brick red** color.

### Step 2: Identify the flame color for Strontium
- **Strontium (Sr)**: Strontium salts produce a **crimson** or **red** flame when burned.

### Step 3: Identify the flame color for Barium
- **Barium (Ba)**: Barium salts produce an **apple green** flame when burned.

### Step 4: Match the flame colors with the corresponding metals
Now, we will match the identified colors with the given options:
- (p) Calcium → Brick red (1)
- (q) Strontium → Crimson (3)
- (r) Barium → Apple green (2)

### Step 5: Write the final matches
Based on the above identifications, we can summarize the matches as follows:
- P (Calcium) = 1 (Brick red)
- Q (Strontium) = 3 (Crimson)
- R (Barium) = 2 (Apple green)

### Final Answer
The correct order is:
- P = 1
- Q = 3
- R = 2

Thus, the answer is: P - 1, Q - 3, R - 2.

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