GENERAL HISTOLOGY

VASCULAR

CAPILLARIES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Water is polar because ____
A
The unequal sharing of electrons gives the water molecule a slight negative charge near its oxygen atom and a slight positive charge near its hydrogen atoms.
B
The molecule has two poles, at which the it is colder than other regions of the molecule.
C
The unequal sharing of electrons gives the water molecule a slight negative charge near its hydrogen atoms and a slight positive charge near its oxygen atom.
D
The water molecule is neutral.
Explanation: 

Detailed explanation-1: -The unequal sharing of electrons between the atoms and the unsymmetrical shape of the molecule means that a water molecule has two poles-a positive charge on the hydrogen pole (side) and a negative charge on the oxygen pole (side).

Detailed explanation-2: -Because oxygen is more electronegative-electron-greedy-than hydrogen, the Ostart text, O, end text atom hogs electrons and keeps them away from the Hstart text, H, end text atoms. This gives the oxygen end of the water molecule a partial negative charge, while the hydrogen end has a partial positive charge.

Detailed explanation-3: -The hydrogen side of the water molecules has a positive charge and the oxygen side of the molecules has a negative charge. This separation of charge is what makes water polar. Another way to think about it is that oxygen is more electronegative that hydrogen.

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