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Answered

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Which of the following is a formula for a hydrocarbon?

A. [tex]CH_2O[/tex]
B. [tex]CH_4[/tex]
C. [tex]CH_3OH[/tex]
D. [tex]HCOOH[/tex]

Sagot :

GinnyAnsweridn
To determine the correct formula for a hydrocarbon, let's first recall the definition of a hydrocarbon: a molecule composed exclusively of hydrogen and carbon atoms.

Here's a closer examination of each given formula:

1. CH[tex]\(_2\)[/tex]O: This formula includes carbon, hydrogen, and oxygen. Since it contains an oxygen atom, it is not a hydrocarbon.

2. CH[tex]\(_4\)[/tex]: This formula contains one carbon atom and four hydrogen atoms, with no other elements present. Thus, it consists entirely of hydrogen and carbon, making it a hydrocarbon.

3. CH[tex]\(_3\)[/tex]OH: This formula includes carbon, hydrogen, and an oxygen atom in the form of a hydroxyl group (-OH). The presence of oxygen means it is not solely made up of hydrogen and carbon, so it is not a hydrocarbon.

4. HCOOH: This formula represents formic acid, which includes carbon, hydrogen, and two oxygen atoms. The presence of oxygen atoms indicates it is not a hydrocarbon.

Given that only CH[tex]\(_4\)[/tex] fits the criteria for a hydrocarbon, we identify it as the correct formula for a hydrocarbon.

Thus, the answer is [tex]\( \boxed{CH_4} \)[/tex].
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