Which of the Following Statements Is Not True About Propyne $\mathrm { HC } \equiv \mathrm { C } - \mathrm { CH } _ { 3 }$

question 48

Multiple Choice

Which of the following statements is not true about propyne $\mathrm { HC } \equiv \mathrm { C } - \mathrm { CH } _ { 3 }$ ?

• A) It contains six sigma bonds.
• B) It contains three pi bonds.
• C) The \(\mathrm { H } - \mathrm { C } - \mathrm { H }\) bond angle is about \(109.5 ^ { \circ }\)
• D) The \(\mathrm { C } - \mathrm { C } - \mathrm { C }\) bond angle is \(180 ^ { \circ } .\)
• E) The pi bond is weaker than the sigma bond.

---

Definitions:

Bones

The hard, dense connective tissue forming the structure of the skeleton of vertebrates, providing support and protection.

True Ribs

True ribs are the top seven pairs of ribs that are directly attached to the sternum through costal cartilages, providing protection to the thoracic cavity.

Vertebrae

The individual bones making up the vertebral column (spine) in humans and other vertebrates.

Ribs

The long curved bones which form the rib cage, providing protection to the thoracic organs.