Which is denatued spirit ?

Options

A. ethanol only
B. ethanol and methanol (50%)
C. ethanol and methanol (5%)
D. methanol only

Answer

### Step-by-Step Solution:

1. **Definition of Denatured Spirit**: Denatured spirit refers to ethanol (alcohol) that has been treated with chemicals to make it undrinkable. This is done to prevent misuse as a beverage.

2. **Components of Denatured Spirit**: Denatured spirit typically contains a high percentage of ethanol (around 72.99%) along with a small percentage of a denaturing agent, such as methanol (approximately 5%). This agent is added to render the alcohol unsuitable for human consumption.

3. **Purpose of Denaturing**: The primary purpose of denaturing alcohol is to avoid taxation and regulation that applies to consumable alcohol. It is often used in laboratories and industrial applications where alcohol is needed but should not be ingested.

4. **Examples of Denaturing Agents**: Common denaturing agents include methanol, isopropanol, or other chemicals that have toxic properties. The addition of these agents ensures that the denatured spirit cannot be consumed safely.

5. **Conclusion**: Denatured spirit is essentially ethanol that has been mixed with a denaturing agent to make it undrinkable, primarily for industrial and laboratory use.