Question

Various properties of water are due to ____________ between water molecules.

• A. hydrogen bonds
• B. peptide bonds
• C. glycosidic bonds
• D. disulphide bonds

Hint:

Bonds between separate water molecules are weak attractions between H and O.

Answer 1

The Correct Option is A

Step 1: Understanding the Concept
In a water molecule oxygen carries a partial negative charge and hydrogen a partial positive charge.

Step 2: Hydrogen bonds
The hydrogen of one molecule is attracted to the oxygen of a neighbouring molecule.
These hydrogen bonds give water its cohesion, surface tension, high specific heat and high boiling point.

Step 3: Compare
Peptide, glycosidic and disulphide bonds are covalent links in proteins and carbohydrates, not between water molecules.

Final Answer:
The properties of water arise from hydrogen bonds between its molecules. \[ \boxed{\text{(A) }\text{hydrogen bonds}} \]