If you paint it.
pH indicators change the color in contact with acids or bases.
Yes, but you need a special base plate.
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blue
pink
both acid and base
NOTHING! Sodium hydroxide (NaOH) is a base, and BLP does not change color with a base.
according to change of PH of medium where the indicator color is changed according to PH of medium
Red color in acidic solutions and blue color in basic solutions.
pH indicators change the color depending upon acidity or basicity.
It is the paint, the color is just color and does not change the base paint. Depending on the grade of paint it may not cover as well as it would with color added.
how much HCl of the same molarity it takes to change the color of your unknown base