Question

Valency of atom C in C_6H_6 is

• A. 1
• B. 2
• C. 4
• D. 6

Hint:

Remember: Carbon typically has a valency of 4 because it needs four electrons to complete its octet, as seen in its bonding in benzene.

Answer 1

The Correct Option is C

Step 1: Structure of C_6H_6
The given compound is C_6H_6, which is benzene. The structure of benzene consists of six carbon atoms arranged in a hexagonal ring, with alternating single and double bonds between them. Each carbon atom is bonded to one hydrogen atom.

Step 2: Valency of Carbon
Carbon has an atomic number of 6, and its electron configuration is 1s\(^2\) 2s\(^2\) 2p\(^2\). Carbon needs four electrons to complete its octet, which gives it a valency of 4. This allows each carbon atom in the benzene ring to form four bonds—one with a hydrogen atom and three with other carbon atoms.

Step 3: Conclusion
Thus, the valency of carbon (C) in C\(_6\)H\(_6\) (benzene) is 4.
\[ \boxed{4} \]