In which solution will thymol blue indicator appear blue?
2 answers:
Answer: (2) 0.1 M KOH
Explanation:
Thymol blue is an universal indicator. Thymol blue has a blue color when in basic conditions (pH > 7), a green color in neutral conditions (pH =7), and a yellow color in acidic conditions (pH < 7).
pH or pOH is the measure of acidity or alkalinity of a solution. pH is calculated by taking negative logarithm of hydrogen ion concentration.
0.1 M , 0.1 M
and 0.1 M
are all acidic in nature.
Thus thymol blue will appear blue in basic 0.1 M KOH.
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