Thymol blue changes its color from red to _______ in base form.
Brown
Yellow
Violet
Litmus is an indicator that turns ______ in an acid solution.
Red
Green
Blue
Methyl orange shows _______ color in basic medium.
Orange
Rose
Yellow
Alizarin turns into _______ in the pH range of 10.1.
Colorless
Yellow
Black
Turmeric turns ____ when it comes in contact with a basic solution.
White
Lilac
Red
Phenolphthalein does not change color in an acidic solution.
True
False
Blue litmus turns _______ in an acidic solution.
Yellow
Red
Green
Azolitmin changes its color from red to _______ in base form.
Blue
Olive
Maroon
Rosolic acid turns ______ in its base form.
Silver
Purple
Red
Phenolphthalein is a colorless solution, that turns ______ in its basic form.
Navy blue
Pink
Cyan
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