IB Biology HL A1.1.5 Water as a Solvent Question Bank
Practise IB Biology HL A1.1.5 by explaining how polarity and hydrogen bonding let water dissolve and transport ionic solutes.
- Syllabus
- First assessment 2025
- Course
- Biology HL
- Level
- HL
Practise IB Biology HL A1.1.5 by explaining how polarity and hydrogen bonding let water dissolve and transport ionic solutes.
The figure represents a water molecule.

Water has important solvent properties. Explain these properties using an example to illustrate your answer.
a. water molecule is polar
OR
water has «weak» positive and negative charges
b. substances that dissolve in water are hydrophilic
c. water forms hydrogen bonds with polar substances
d. positive/hydrogen side/pole of water attracted to negative ions OR negative/oxygen side/pole attracted to positive ions
e. glucose/other example dissolves because it is polar
OR sodium chloride/other example dissolves because ions are attracted to water
3 max