JAMB - Chemistry (1983 - No. 17)
The correct name of the compound with the above structural formula is
2-methylbut -1-ene
2-methylbut -2-ene
2-methylbutane
2-ethylprop-1 -ene
2-ethylprop-2-ene
Shpjegimi
C2H5 - CH=CH2
CH3
the compound above is numbered from right to left and is named 2 - methyl but - 1 - ene.