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red
5
rainbow
YYEESSS
orange and PH of 6
This is because the toothpaste has some amount of acid or alkaline in it .
Yellow because toothpaste is base
it is clear.
red
5
purple
rainbow
YYEESSS
blue
orange and PH of 6
pH of ammonia is around 11-12. Hence when you put it in a universal indicator, you get purple color.
It goes purple