chapter 2 Exploring Substances: Acidic, Basic, and Neutral - Part 3

Which observation is strongest evidence that a sample is basic?

Type: MCQ • Marks: 1
Which observation is strongest evidence that a sample is basic?
Options
A. Blue litmus turns red
B. Red litmus remains red
C. Blue litmus remains blue
D. Red litmus turns blue
Explanation
Red-to-blue litmus change directly indicates basicity.
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