What is the general formula that represents the compound #CH_3CH_2C CH#?

2 Answers
May 20, 2017

#"R"_1-"C"-="C"-"R"_2#, I suppose, since this is an alkyne, a hydrocarbon with a triple bond (and a pure alkyne has no double bond).

From the single #"H"# on the far right, the far-right carbon must be #sp#-hybridized. It has two #sigma# bonds, one with that right-hand #"H"# and one with the next to last carbon.

Structurally...

#"H"_3"C"-"CH"_2-"C"-="C"-"H"#

Can you rationalize why this compound is called 1-butyne?

May 20, 2017

Answer:

#"HC"-="CCH"_2"CH"_3# is #"1-butyne"#.

Explanation:

#"Butyne"#, #C_4H_6# has 2 degrees of unsaturation with respect to saturated #"butane"#, #C_4H_10#.