Chemistry · CHEMICAL BONDING AND MOLECULAR STRUCTURE

In an ethene molecule (\( \text{C}_2\text{H}_4 \)), the reported \( \text{H}-\text{C}-\text{H} \) angle is \( 117.6^\circ \). Assuming planar symmetry such that the two \( \text{H}-\text{C}-\text{C} \) angles are identical, calculate each \( \text{H}-\text{C}-\text{C} \) bond angle.

1. A
   \( 121.2^\circ \)
2. B
   \( 120.0^\circ \)
3. C
   \( 122.4^\circ \)
4. D
   \( 118.8^\circ \)