How many carbon atoms are in the following molecule of isobutane? (ch3)3ch
a. 3
b. 4
c. 9
d. 10

B. 4

Explanation:

There are 4 carbon atoms present. Looking at the methyl group CH3, there is presence of carbon C which occurs three times because we have 3-methyl groups (CH3) plus another carbon C attached to the CH compound making it 4-carbon atoms present.

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