Quiz | Alkynes
The triple bond of an alkyne is composed of:
3 σ bonds
2 σ bonds + 1 π bond
1 σ bond + 2 π bonds
3 π bonds
How many distinct alkynes exist with a molecular formula of C4H6?
0
1
2
3
Which of the following reagents should be used to convert but-2-yne to (E)-but-2-ene?
H2, Pt
H2, Lindlar catalyst
Na, NH3 (liq.)
HgSO4, H2O
Which of the following reagents should be used to convert but-2-yne to (Z)-but-2-ene?
H2, Pt
H2, Lindlar catalyst
Na, NH3 (liq.)
HgSO4, H2O
Which of the species below is less basic than acetylide?
BuLi
MeMgBr
MeONa
All of the above
Which of the alkyne addition reactions below involve an enol intermediate?
Hydrogenation
Hydroboration - Oxidation
HgSO4 in dilute H2SO4
Both Hydrogenation and HgSO4 in dilute H2SO4
