what is indicator ?? thanks sis ,(^_^.)
but thanks dene ka koi fayda nhi ye id delete hone wali hai(≧▽≦)
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A pH indicator is a halochromic chemical compound added in small amounts to a solution so the pH of the solution can be determined visually. Hence, a pH indicator is a chemical detector for hydronium ions or hydrogen ions in the Arrhenius model
Oh ohk !!
Gn sd tc :)
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