alleryStart learning →The pH scale is an inverse logarithmic scale. What is its full range?
A0 to 7
B0 to 10
C0 to 14
D1 to 100
Answer & Solution
Correct answer: C. 0 to 14
1. The pH scale was deliberately constructed to span the practical range of hydrogen ion concentrations encountered in aqueous chemistry.
2. The text states: "The pH scale is, as previously mentioned, an inverse logarithm and ranges from 0 to 14."
3. A pH of 7 is the midpoint (neutral), not the top of the scale, which is why "0 to 7" alone would only capture the acidic half.
4. So the complete pH scale runs from 0 to 14, covering both the acidic and basic ranges.
_Source: OpenStax Biology Ch 2 "The Chemical Foundation of Life", p.52 §2.2 | Water_
Keep practising The Chemical Foundation of Life
Browse all The Chemical Foundation of Life questions for NPCIL Trainee, or explore more Biology topics.
Related questions
True or false: atoms and isotopesComplete the shell rulesWhich half-life is longer?Match each term to its meaningCount the particlesSort the subatomic particlesA carbon atom, with an atomic number of six, typically forms how many covalent bonds in orThe buffer system that helps maintain a stable pH in human blood mainly involves carbonic