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प्रश्न
Indicator is a substance which shows different colours in acidic and basic solutions.
पर्याय
True
False
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उत्तर
This statement is True.
Explanation:
An indicator is a substance that changes colour when added to acidic or basic solutions, allowing us to determine the pH level of the solution.
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संबंधित प्रश्न
What colour does the following indicator turn when added to a base or alkali (such as sodium hydroxide)?
Litmus
Acids have a pH ______ than 7.
Alkalis have a pH ______ than 7.
A farmer has found that the pH of soil in his fields is 4.2. Name any two chemical materials which he can mix with the soil to adjust its pH.
Which of the following elements would form oxides which would indicate pH values less than seven, using moist pH paper?
Magnesium, Carbon, Sulphur, Hydrogen, Copper
The pH values of five solutions A, B, C, D and E are given below:
| A | 1 |
| B | 5 |
| C | 7 |
| D | 11 |
| E | 13 |
Which solution is
- weakly alkaline
- neutral
- strongly acidic
- strongly alkaline, and
- weakly acidic?
In basic solution turmeric indicator paper changes from yellow to _______.
Which of the following is not a natural indicator?
Name any two synthetic acid-base indicators.
Take some lemon juice in a tumbler and add baking soda slowly. What do you see? What do you infer from this?
