turmeric is an natural indicator of acid and base
So far i have found Litmus, Mallow tea and red cabbage juice. Post another answer if you know some more.
Indicators are chemical solutions that are used for the main purpose of showing whether the tested solution is an acid or base. That being said indicators can be acids or bases.
Onion Clove and Vanilla are Indicators . They indicate if a susbstance is Acidic or Basic in nature by changing their smell . These type of indicators which change smell are known as "olfactory indicators".
Acids all- *Taste sour *Turn blue litmus paper red *React strongly with other elements, especially bases
Indicators can determine a acid and base because of the reaction that occurs between the substances and the indicator by changing color.
hydronium ions
Acid base indicators are used to identify acids and bases. Among the common indicators are;PhenolphthaleinMethyl redMethyl orangeBromothymol blue
Indicators are compounds that react with acids and bases to make certain colors. (:
there will be a massive explosion
These compounds are called pH indicators.
About 10 distinguish Acids and bases. ( written by and 11 year old)
red cabbage is a good indicator
cabbage for more info on cabbage indicators go to about.com
Indicators are chemical solutions that are used for the main purpose of showing whether the tested solution is an acid or base. That being said indicators can be acids or bases.
Acid-base indicators are used for this purpose.
bsmt 1 india.
Onion Clove and Vanilla are Indicators . They indicate if a susbstance is Acidic or Basic in nature by changing their smell . These type of indicators which change smell are known as "olfactory indicators".
pH indicators change the color in contact with acids or bases.