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Testing Your Organic Chemistry Knowledge to Reinforce ...

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<strong>Testing</strong> <strong>Your</strong> <strong>Organic</strong> <strong>Chemistry</strong> <strong>Knowledge</strong> <strong>to</strong> <strong>Reinforce</strong> Comprehension and<br />

Understanding using Web-based Multiple Choice Questions<br />

Andrew Boa and Jason Eames*<br />

Department of <strong>Chemistry</strong>, University of Hull<br />

a.n.boa@hull.ac.uk; j.eames@hull.ac.uk<br />

22. Bonding 2<br />

How many sigma bonds are there in CH2=CH-CH2-CH=CH2?<br />

a. 4<br />

b. 6<br />

c. 9<br />

*d. 12<br />

e. 14<br />

Correct Answer Reply:<br />

Multiple bonds are made up of one sigma-bond plus one (for alkenes) or two (for<br />

alkynes) pi-bonds. Therefore, four C-C sigma-bonds and eight C-H bonds gives an<br />

overall <strong>to</strong>tal of 12.

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