Which among the following hydrocarbon is an alkene?
C6 H14
C15 H32
C8 H20
C12H24
C12H24 is alkene as CnH2n is the general formulae.
IfH1,H2,....H20be 20 harmonic means between 2 and 3, thenH1+2H1−2+H20+3H20−3=