91影视

Carbon is an element that has four electrons in its valence shell. Thus, it is able to form four covalent bonds with other elements or groups. When a carbon is bonded to four separate elements or groups in an organic molecule, it is called asymmetric.

When carbon is not bonded to four separate elements or groups, it is called symmetric.

The carbon 鈥榓鈥� is attached to three separate atoms and groups (O, H, and C₄H₈OH). It is attached to only three atoms or groups as it is doubled bonded to an oxygen atom.

Thus, the carbon 鈥榓鈥� is not asymmetric.

Therefore, the given option is false.

The carbon 鈥榖鈥� is attached to four separate atoms and groups (CO, H, OH, and C₄H₈).

As all the carbon bonds are bonded to separate groups and atoms, the carbon 鈥榖鈥� is asymmetric.

Therefore, the given option is true.

The carbon 鈥榗鈥� is attached to three separate atoms and groups (C₂H₃O₂, H, and C₂H₅). The carbon 鈥榗鈥� is connected to two hydrogen atoms and does not have all different groups and atoms.

Thus, carbon 鈥榗鈥� is not asymmetric.

Therefore, the given option is false.

The carbon鈥榙鈥� is attached to three separate atoms and groups (C₃H₅O₂, H, and CH₃). The carbon 鈥榙鈥� is connected to two hydrogen atoms and does not have all separate groups and atoms.

Thus, the carbon 鈥榙鈥� is not asymmetric.

Therefore, the given option is false.

The carbon 鈥榚鈥� is attached to two separate atoms and groups (C₄H7O₂and H). The carbon 鈥榚鈥� is connected to three hydrogen atoms and does not have all separate groups and atoms.

Thus, the carbon 鈥榚鈥� is not asymmetric.

Therefore, the given option is false.