what are the types of indicators
Answers
Answer:
universal indicators is a mixture of coloured compounds, which is used for simple testing of solutions . it is of no use for titrations as there are several colour changes that take place over a variety of pH values.
TYPES OF INDICATORS :
- natural indicators : Natural Indicator is a type of indicator that can be found naturally and can determine whether the substance is an acidic substance or a basic substance. Some examples of natural indicators are red cabbage, turmeric, grape juice, turnip skin, curry powder, cherries, beetroots, onion, tomato, etc.
- impact indicators: Impact indicators measure what a project has achieved relative to its aims and thus promote accountability; • Public relations and advocacy: Impacts and Performance indicators can be used to create consensus, to advocate for the project's goals;
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Answer:
✪INDICATORS✪
⇒ The substance which are used to check whether the given solution is acidic or bases .
✪ TYPES OF INDICATORS ✪
1.) Natural Indicators :- The indicators which we get from nature are called natural indicators .
⇒For example:- litmus , Turmeric.
2.) Synthetic indicators:- Man made indicators acid are called synthetic indicators.
⇒For example:- Phenolphthalein, Methyl-orange.
3.) Olfactory indicators:- The indicators which detect acids , bases with the help of their smell .
⇒For example:- Clove oil , vanilla, onion .
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