Which of these is a structural isomer of butanol? a) mc017-2. jpgb) mc017-3. jpgc) mc017-4. jpgd) mc017-5. jpg

Option B is a structural isomer of butanol.

A structural isomer is a molecule that has the same molecular formula, but a different structural arrangement of atoms.

Knowing that the molecular formula of Butanol is C₄H₁₀O, let's look at the different options:

A) This compound is called Butane, and its molecular formula is C₄H₁₀-Not an structural isomer of Butanol.

B) This compound is called Butan-2-ol, and its molecular formula is C₄H₁₀O-It is an structural isomer of Butanol. The only difference is the location of the -OH group.

C) This compound is called Ethyl Methyl Ether, and its molecular formula is C₃H₈O-Not an structural isomer of Butanol.

D) This compound is called Butanal, and its molecular formula is C₄H₈O-Not an structural isomer of Butanol.

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the number of valence electrons for each molecule or ion is shown beneath the structure. remember hydrogen will not have more than two electrons. this hydrogen is part of a covalent bond (sharing two electrons). a double bond here would cause hydrogen to share four electrons with phosphorus.

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