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: Define empirical formula
The empirical formula denotes the simplest whole-number ratio of elements in a compound.
Step 2: Determine empirical formula from molecular formula
The molecular formula is \( \text{C}_6\text{H}_6 \), indicating 6 carbon atoms and 6 hydrogen atoms. 
To find the empirical formula, divide the subscripts by their greatest common divisor (GCD). The GCD of 6 and 6 is 6. \[ \frac{6}{6} : \frac{6}{6} = 1 : 1 \] Consequently, the empirical formula is \( \text{CH} \). 
Answer:
The empirical formula for \( \text{C}_6\text{H}_6 \) is \( \text{CH} \). Option (1) is the correct answer.