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How can you recognize an alcohol?
O A. It has an -NH2 group attached to the molecule.
O B. It has an O molecule attached to two R groups.
O C. It has a C=0 group attached to two R groups.
O D. It has an -OH group attached to the end of the molecule.

Sagot :

Answer:

O D. It has an -OH group attached to the end of the molecule.

Explanation:

Some alcohols have hydroxyl group (OH) attached to the end of a molecule and some have it attached as a branch on the molecule

[tex]{ \rm{R - OH \: : \: primary \: alcohol \: (1 \degree)}} \\ \\ { \rm{R -(OH) - R {}^{i} \: : secondary \: alcohol \: (2 \degree)}} \\ \\ { \rm{R - R {}^{i} (OH) - R {}^{ii} \: : tertiary \: alcohol \: (3 \degree)}}[/tex]

  • R is aryl or alkyl group
  • OH is hydroxyl group

Alcohol is recognized by its functional group attached to the end of the molecule. Alcohol is an organic compound with a hydroxyl (OH) functional group on an aliphatic carbon atom.

What is meant by functional group?

  • A functional group may be defined as an atom or a group of atoms present in a molecule that largely determines its chemical properties.
  • The remaining part of a molecule mainly affects the physical properties such as melting point, boiling point, density, solubility, refractive index, etc.
  • The five main functional groups are Hydroxyl (R-OH), Sulfhydryl (R-S-H), Carbonyl (R-CO-R), Carboxyl (R-CO-OH), Amino, and phosphate groups.

What is the functional group for Alcohol?

  • The functional group of an alcohol is the hydroxyl group, R–OH.
  • Unlike the alkyl halides, this group has two reactive covalent bonds, the C–O bond and the O–H bond.
  • The electronegativity of oxygen is substantially greater than that of carbon and hydrogen.

Thus, alcohol is recognized by its -OH group attached to the end of the molecule.

Learn more about functional groups here:

https://brainly.com/question/696051

https://brainly.com/question/493841

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