Magician Posted March 29, 2016 Report Share Posted March 29, 2016 (edited) Edit: SOLVED Which substance has the greatest bond length between the carbon atoms? A. C2H2 B. C2H4 C. C2H6 D. C2Cl4 Answer is C. I get why the bond length of C > B > A due to single bond length > double bond length > triple bond length. However, I have no idea about the bond length of the halogenoalkene. Help is very much appreciated, thanks! Edited March 29, 2016 by Animate Reply Link to post Share on other sites More sharing options...
LolzDoingIB Posted March 29, 2016 Report Share Posted March 29, 2016 Well the halogenoalkane would have the same structural form as ethene, since we can just replace all the hydrogens with chlorine atoms and not change the double bond between the carbon atoms. Therefore CCl4 would have a double bond between the carbon atoms. Reply Link to post Share on other sites More sharing options...
Magician Posted March 29, 2016 Author Report Share Posted March 29, 2016 13 minutes ago, LolzDoingIB said: Well the halogenoalkane would have the same structural form as ethene, since we can just replace all the hydrogens with chlorine atoms and not change the double bond between the carbon atoms. Therefore CCl4 would have a double bond between the carbon atoms. Thanks, but why is the answer C though? Reply Link to post Share on other sites More sharing options...
kw0573 Posted March 29, 2016 Report Share Posted March 29, 2016 A) has C-C triple bond. B) has C-C double bond. C) has C-C single bond, D) has C-C double bond. D is not a haloalkane, but rather it is a haloalkene! Choice C is the only one with ANY C-C single bond. In addition, question says "between carbon atoms", which refers to bonding in carbon atoms exclusively. The question doe not ask you to compare C-Cl bonds. 2 Reply Link to post Share on other sites More sharing options...
Magician Posted March 29, 2016 Author Report Share Posted March 29, 2016 7 minutes ago, kw0573 said: A) has C-C triple bond. B) has C-C double bond. C) has C-C single bond, D) has C-C double bond. D is not a haloalkane, but rather it is a haloalkene! Choice C is the only one with ANY C-C single bond. In addition, question says "between carbon atoms", which refers to bonding in carbon atoms exclusively. The question doe not ask you to compare C-Cl bonds. Oh hahahaha, trick question. Thanks! Reply Link to post Share on other sites More sharing options...
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