ExpertEasy1 markMultiple Choice
AQA GCSE · Question 02.2 · Chemical changes
What type of aqueous solution has a pH of 11?
What type of aqueous solution has a pH of 11?
Answer options:
A.
Acidic
B.
Alkaline
C.
Neutral
How to approach this question
Recall the pH scale. pH < 7 is acidic, pH = 7 is neutral, and pH > 7 is alkaline (or basic). A pH of 11 is greater than 7.
Full Answer
B.Alkaline✓ Correct
Alkaline
The pH scale measures how acidic or alkaline a solution is.\n- A pH less than 7 is acidic.\n- A pH of 7 is neutral.\n- A pH greater than 7 is alkaline.\nSince 11 is greater than 7, the solution is alkaline.
Common mistakes
✗ Confusing the ranges for acidic and alkaline solutions.
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