Question

How many equivalent groups of hydrogen are there in the para- structure given? (p-xylene or 1,4-dimethylbenzene)

a) 1
b) 2
c) 3
d) 4

Answer 1

There are 2 equivalent groups of hydrogen in the para- structure given.

Step-by-step explanation:

In the para- structure given, there are 2 equivalent groups of hydrogen. This can be observed in p-xylene or 1,4-dimethylbenzene.

In p-xylene, the two methyl groups are in a 1,4 arrangement, meaning they are located across from each other on the benzene ring.

Therefore, the correct answer is b) 2.