NURSING ANM AND GNM

NURSING EXAM QUESTIONS

BIOCHEMISTRY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What type of bond gives a water molecule its unique properties?
A
Nonpolar
B
Covalent
C
Ionic
D
Hydrogen
Explanation: 

Detailed explanation-1: -In the case of water, hydrogen bonds form between neighboring hydrogen and oxygen atoms of adjacent water molecules. The attraction between individual water molecules creates a bond known as a hydrogen bond.

Detailed explanation-2: -Summary. Water molecules are polar, so they form hydrogen bonds. This gives water unique properties, such as a relatively high boiling point, high specific heat, cohesion, adhesion and density.

Detailed explanation-3: -Hydrogen bonds are a special type of dipole-dipole forces. In hydrogen bonding, the dipole-dipole attraction occurs between hydrogen and a highly electronegative atom(O, F, Cl, etc). Hydrogen bonds are much stronger than a general dipole-dipole force. These are the only differences, otherwise everything is same.

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