Question

What is the empirical formula of $ \text{C}_6\text{H}_6 $?

• A. \( \text{CH} \)
• B. \( \text{C}_2\text{H}_3 \)
• C. \( \text{C}_3\text{H}_3 \)
• D. \( \text{C}_6\text{H}_6 \)

Hint:

Remember: The empirical formula represents the simplest ratio of elements in a compound, which is obtained by dividing the subscripts of the molecular formula by their GCD.

Answer 1

The Correct Option is A

Step 1: Recall the definition of empirical formula
The empirical formula of a compound represents the simplest whole-number ratio of the elements present in the compound. 
Step 2: Simplify the molecular formula
The molecular formula of the compound is \( \text{C}_6\text{H}_6 \), which shows 6 carbon atoms and 6 hydrogen atoms. 
To obtain the empirical formula, divide both the number of carbon atoms and the number of hydrogen atoms by the greatest common divisor (GCD) of 6. \[ \frac{6}{6} : \frac{6}{6} = 1 : 1 \] Thus, the empirical formula is \( \text{CH} \). 
Answer:
Therefore, the empirical formula of \( \text{C}_6\text{H}_6 \) is \( \text{CH} \). So, the correct answer is option (1).