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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 an acid (such as hydrochloric acid)?
Litmus
Name two olfactory indicators. What is the effect of adding sodium hydroxide solution to these olfactory indicators?
A beaker of concentrated hydrochloric acid has a pH of 1. What colour will full range universal indicator turn if it is added to this beaker? Is it a strong or a weak acid?
What does the pH of a solution signify?
Under what soil conditions do you think a farmer would treat the soil of his fields with quicklime (calcium oxide), or slaked lime (calcium hydroxide) or chalk (calcium carbonate)?
What do you think will be the pH in the stomach of a person suffering from indigestion: less than 7 or more than 7?
When a solution becomes more acidic, does the pH get higher or lower?
Fresh milk has a pH of 6. When milk changes into curd, the pH value will ______.
A student prepares solutions of (i) an acid and (ii) a base in two separate beakers. She forgot to label the solutions and litmus paper is not available in the laboratory. Since both the solutions are colourless, how will she distinguish between the two?
Using the knowledge of acids and bases, write a secret message with the help of baking soda and beet root. Explain how it works.
(Hint: Prepare baking soda solution in water. Use this solution to write the message on a sheet of white paper with a cotton bud. Rub a slice of fresh beetroot over the message.)
