Indicators
Indicators
Indicators:
Indicators are substances which show a change in colour when brought in contact with acids and bases. The solutions that do not show change in colour in any indicator are neither acidic nor basic and are called neutral substances. Eg: water, sodium chloride, sugar etc. the indicator so chosen that it gives a different colour for different pH values. This paper is called pH paper.
|
Indicator |
Acid |
Base |
|
Blue litmus paper |
Red |
Blue |
|
Red litmus paper |
Red |
Blue |
|
Phenolphthalein |
Colour less |
Pink |
|
Methyl orange |
Red |
yellow |
Household Indicators:
(i) Turmeric juice: It is yellow in colour. It remains yellow in an acidic or neutral solution but turns deep brown in a basic solution.
An indicator is a substance which shows the presence of a chemical substance by __________ | |||
| Right Option : A | |||
| View Explanation | |||
____________ indicator is obtainted from leaves of a plant. | |||
| Right Option : C | |||
| View Explanation | |||
____________ indicator is obtainted from root of a plant. | |||
| Right Option : A | |||
| View Explanation | |||
Students / Parents Reviews [10]
I have spent a wonderful time in Abhyas academy. It has made my reasoning more apt, English more stronger and Maths an interesting subject for me. It has given me a habbit of self studying
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10thIt has a great methodology. Students here can get analysis to their test quickly.We can learn easily through PPTs and the testing methods are good. We know that where we have to practice
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10thIt was a good experience with Abhyas Academy. I even faced problems in starting but slowly and steadily overcomed. Especially reasoning classes helped me a lot.
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Eshan Arora
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Shivam Rana
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Om Umang
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