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Sagot :
There are some types of properties about the substance that you tested did you use to determine whether you thought it was an acid or base. Some are given below.
- Litmus paper : If a blue litmus paper turns red the solution is acid, it means its pH level is less than 7. If a red litmus paper turns blue the solution is basic,It means its pH level is more than 7.
- Indicators : Different indicators is used to determine whether a solution is acidic or basic. The common examples of indicators are methyl orange and phenolpthalein .
Substances that are used to determine whether a particular substance is an acid or base are called indicator. The indicator is a dye that is weak an organic acid or base that changes color when it is added to an acid and base.
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