# What is an example of a carbon chemistry practice problem?

Jul 24, 2015

I don't know how far you are, so perhaps one of these.

• Name the allotropes of carbon.
Hint: there are 3. (Don't look them up)

• Draw the resonance structures of 1,3,5-hexatriene:

• Determine the products of:

$H C \equiv C H + N {a}^{+} H {:}^{-} \to \text{Product A}$

$\text{Product A" + CH_3CH_2Br -> "Product B}$

Hint:

• $H {:}^{-}$ is a very strong lewis base. What do lewis bases want?
• What then does "Product A" want to do to $C {H}_{3} C {H}_{2} B r$, which has a $B r$, a good leaving group in this context?
• "Product B" is a connection between acetylene and $C {H}_{3} C {H}_{2} B r$ in some way.