Hydrogen bonds form in water because

  1. water molecules are polar
  2. oxygen is positively charged
  3. hydrogen is negatively charged
  4. water is non-polar
Answer

A) water molecules are polar

δ+ H attracts δ− O. AS & A Level Biology · Topic 2 Biological Molecules · 2.4 Water

Biology MCQ · More A Level Biology: Biological molecules MCQs · Practise