If someone reported the preparation of a compound with the formula C3H9, most chemists would be skeptical. Why?

Verified step by step guidance

1. Step 1: Understand the concept of valency and bonding in carbon atoms. Carbon typically forms four covalent bonds due to its four valence electrons.
2. Step 2: Analyze the given molecular formula C3H9. Calculate the total number of hydrogen atoms that can bond with three carbon atoms, considering each carbon can form four bonds.
3. Step 3: Consider the possible structures for C3H9. Start by arranging three carbon atoms in a chain or branched structure and attempt to satisfy the valency of each carbon with hydrogen atoms.
4. Step 4: Realize that for three carbon atoms, the maximum number of hydrogen atoms that can be bonded is eight, forming propane (C3H8). This is because each carbon atom can only form four bonds.
5. Step 5: Conclude that the formula C3H9 is not feasible because it suggests an extra hydrogen atom that cannot be accommodated without violating the valency rules of carbon, leading to skepticism among chemists.