The C-H bond length in benzene is

Options

A. 109 pm
B. 111 pm
C. 113 pm
D. 107 pm

Explanation

To determine the C-H bond length in benzene, we can follow these steps:

### Step 1: Understand the Structure of Benzene
Benzene is a cyclic compound with a formula of C6H6. It consists of six carbon atoms arranged in a hexagonal ring, with alternating double bonds. Each carbon atom is bonded to one hydrogen atom.

**Hint:** Recall that benzene has a planar structure with sp2 hybridized carbon atoms.

### Step 2: Identify the Hybridization of Carbon Atoms
In benzene, all carbon atoms are sp2 hybridized. This means that each carbon atom forms three sigma bonds: two with adjacent carbon atoms and one with a hydrogen atom. The remaining p orbital on each carbon atom participates in the delocalized pi bonding.

**Hint:** Remember that sp2 hybridization leads to a trigonal planar geometry around each carbon atom.

### Step 3: Determine the Bond Length of C-H in sp2 Hybridized Carbons
The bond length of the C-H bond in sp2 hybridized carbon is a known value. It is approximately 109 picometers (pm). This value is consistent across various sp2 hybridized compounds, including benzene.

**Hint:** Keep in mind that bond lengths can vary based on hybridization, and sp2 hybridized carbons have a specific bond length.

### Step 4: Conclude the Answer
Based on the information gathered, the C-H bond length in benzene is 109 picometers.

**Final Answer:** The C-H bond length in benzene is 109 picometers.