AP BIOLOGY

LABORATORY REVIEW

MOLECULAR BIOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
CH3 is a ____ group
A
carboxyl
B
methyl
C
amine
D
hydroxyl
Explanation: 

Detailed explanation-1: -Methyl (methyl group; Me): A molecular structure equivalent to methane minus one hydrogen atom: CH3. Sometimes abbreviated as Me.

Detailed explanation-2: -An alkyl group is a group of atoms that results when one hydrogen atom is removed from an alkane. The group is named by replacing the-ane suffix of the parent hydrocarbon with-yl. For example, the-CH3 group derived from methane (CH4) results from subtracting one hydrogen atom and is called a methyl group.

Detailed explanation-3: -Alkyl substituents (e.g.-CH3) are electron donating groups because they activate the aromatic ring by increasing the electron density on the ring through an inductive donating effect.

Detailed explanation-4: -Alkyl groups A methyl group is CH3. An ethyl group is CH3CH2.

Detailed explanation-5: -Methyl radical | CH3-PubChem.

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