IMAT 2013 Q48 [Carbon to Carbon Bonds]

Which of the following are correct about carbon to carbon bonds?

  1. The length of carbon to carbon bonds increases in the order C≡C, C=C, C­C.
  2. The strength of the C=C bond is less than twice the strength of the C­C bond.
  3. The carbon atoms are joined by six electrons in the C≡C bond.

A. 2 and 3 only
B. 1 and 3 only
C. 1, 2 and 3
D. 1 and 2 only
E. 3 only