Distinguish between the following pairs of compounds using the test given within the brackets.
Calcium nitrate and potassium nitrate (using a flame test)

Explanation

To distinguish between calcium nitrate and potassium nitrate using a flame test, follow these steps:

### Step-by-Step Solution:

1. **Understand the Flame Test**: The flame test is a qualitative analysis technique used to identify the presence of certain metal ions based on the color of the flame produced when the sample is heated.

2. **Prepare the Samples**: Take a small amount of calcium nitrate and potassium nitrate in separate clean metal loops or wires.

...