The principle of the reagent strip test for specific gravity is:
A) Ionization of the indicator bromothymol blue, producing a pH change
B) Ionization of a polyelectrolyte, producing a pH change detected by bromothymol blue
C) Reaction of dissociated polyelectrolyte with bromothymol blue to produce a pH change
D) Change in the pKa of bromothymol blue to produce a pH change
Correct Answer:
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