Bromine occurs as a bromide in a minral called

Options

A. Nitre
B. Tincal
C. Common salt
D. Carnallite

Answer

To solve the question "Bromine occurs as a bromide in a mineral called," we will analyze the given options one by one to determine which mineral contains bromide.

### Step-by-Step Solution:

1. **Identify the Options**: The options provided are:
- A) Niter
- B) Tinkle
- C) Common Salt
- D) Carnelite

2. **Evaluate Option A - Niter**:
- Niter is known to be potassium nitrate (KNO₃).
- Since it contains potassium (K⁺) and nitrate (NO₃⁻), there is no bromide (Br⁻) present in this mineral.
- **Conclusion**: Niter does not contain bromine as bromide.

3. **Evaluate Option B - Tinkle**:
- Tinkle refers to borax, which has the chemical formula Na₂B₄O₇·10H₂O.
- Borax does not contain bromine or bromide ions.
- **Conclusion**: Tinkle does not contain bromine as bromide.

4. **Evaluate Option C - Common Salt**:
- Common salt is sodium chloride (NaCl).
- This mineral consists of sodium (Na⁺) and chloride (Cl⁻), and does not contain bromide.
- **Conclusion**: Common salt does not contain bromine as bromide.

5. **Evaluate Option D - Carnelite**:
- Carnelite is a mineral with the formula KCl·MgCl₂·6H₂O.
- This mineral contains potassium chloride and magnesium chloride, but it also contains impurities of potassium bromide (KBr) and magnesium bromide (MgBr₂).
- Therefore, bromine occurs as bromide (Br⁻) in this mineral.
- **Conclusion**: Carnelite is the mineral where bromine occurs as bromide.

6. **Final Answer**: The correct answer is D) Carnelite.