Litmus is a dye extracted from lichens, a plant. Upon addition of acid, litmus turns red whilst on addition of base, litmus turns blue. Being acidic, containing citric acid, lemon juice is expected to turn violet litmus paper red.
a peachish colour
Red. Lime juice is fairly acidic.
red
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blue
Lemon juice contains citric acid so blue litmus paper dipped in lemon juice will turn red indicating that it is acidic.
it turns acidic or very basic
Lemon juice is an acid and blue litmus paper turns red when dipped in an acidic liquid.
blue
Red
Apple juice is slightly acidic and therefore red litmus will not change color.
It tells you that the juice is coloured orange and that the litmus strip is simply showing the colour of the stuff that it is dipped into. A litmus strip should turn red in an acid environment but if you dip it into a mixture of mainly blue ink (neutral) and a tiny bit of vinegar (mild acid) it will turn blue and not red. Why? Because the blueness of the ink overwhelms the effect of the mild acid.
It tells you that the juice is coloured orange and that the litmus strip is simply showing the colour of the stuff that it is dipped into. A litmus strip should turn red in an acid environment but if you dip it into a mixture of mainly blue ink (neutral) and a tiny bit of vinegar (mild acid) it will turn blue and not red. Why? Because the blueness of the ink overwhelms the effect of the mild acid.
Litmus paper turn to red color.
I am able to observe the color of tomato juice (red) and the phase of tomato juice (liquid).