Universal Indicators
Universal Indicators
Universal indicator:
A universal indicator is a mixture of indicators so chosen that it gives different color for different pH value. These indicators are used to indicate the acidity and alkalinity of the solution by colour change.
In an acidic medium the indicator will show colors like Red, Orange, yellow, Orangish yellow etc.
In the basic medium the indicator will change its colour to blue violet or purple.
In neutral medium, it will change its colour to green.
In an _______________ the indicator will show colors like Red, Orange, yellow, Orangish yellow etc. | |||
| Right Option : A | |||
| View Explanation | |||
_____________________ is a mixture of indicators so that it gives different pH values. | |||
| Right Option : C | |||
| View Explanation | |||
Which of the following are correct ? (a) The indicators are used to indicate the acidity and alkalinity of the solution by colour change. (b) In an acidic medium the indicator will show colors like Red, Orange, yellow, Orangish yellow etc. (c) In the neutral medium the indicator will change its colour to blue violet or purple. | |||
| Right Option : A | |||
| View Explanation | |||
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