Compounds such as butane and isobutane that have the same molecular formula but differ in the order in which the atoms are connected are called a. trans isomers

b. cis isomers

c. conventional isomers

d. constitutional isomers​

One compound, called n-butane, where the prefix n- represents normal, has its four carbon atoms bonded in a continuous chain. The other, called isobutane, has a branched chain. Different compounds that have the same molecular formula are called isomers.

d. constitutional isomers​

Explanation:

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