UNIT EXAM u CHEM 232) There is only one best answer for each of the following qu

Question

UNIT EXAM u CHEM 232) There is only one best answer for each of the following questions points each) r. What is the bond order of the carbon-carbon bonds in benzene? D) 2 A) 0.5 B) 1 C) 1.5 2. Assume planarity of the R network Classify the compound below C) non aromatic B) antiaromatic A) aromatic 3. Assume planarity of the at etwork. Classify the compound below. n antiaromatic C) nonaromatic A) aromatic B) 4. Classify the following compound. B) antiaromatic C) nonaromatic A) aromatic 5 classify the following compound. B) antiaromatic C) nonaromatic A) aromatic

Explanation / Answer

answer1. Bond order is the no. of bonds between two atoms .

Since benzene have two canonical structures , we have to find average bond between two carbon atoms.

Average = Sum of bonds between two canonical structures/ no. of canonical structures

= 3/2 = 1.5

So option (C) is correct.

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