2006-07-31 12:21:06 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
Litmus comes from a plant. The pigment reacts with acid and base by changing color. It is red in acid and blue in base. It is nearly purple at neutral , pH7
2006-07-31 12:33:15 · answer #1 · answered by science teacher 7 · 1⤊ 0⤋
Litmus papers does come in two 2 colours red and blue. And they are used in testing Alkaline and an acidic solution respectively.
Roger that!
2006-07-31 19:51:28 · answer #2 · answered by Anonymous · 0⤊ 0⤋
LITMUS paper usually comes in blue and red.
It turns blue in a base and red in an acid.
http://en.wikipedia.org/wiki/Litmus_test_%28chemistry%29
2006-07-31 19:25:01 · answer #3 · answered by shmux 6 · 0⤊ 0⤋
litmus paper is yellowish. when exposed to acid it turns red, when exposed to base it turns blue
2006-08-01 14:52:16 · answer #4 · answered by shiara_blade 6 · 0⤊ 0⤋