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प्रश्न
How will you test for the presence of this gas?
उत्तर
When the gas, liberated during the reaction, is passed through lime water, the lime water turns milky or a white precipitate of calcium carbonate is formed. This confirms that the gas is none other than carbon dioxide.
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संबंधित प्रश्न
Why does distilled water not conduct electricity, whereas rain water does?
Why do acids not show acidic behaviour in the absence of water?
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(a) methyl orange
What colours do the following indicators turn when added to an acid (such as hydrochloric acid)?
methyl orange
Fill in the blank in the following sentences:
Acids produce.......................... ions on dissolving in water.
You have been provided with three test-bubes. One of these test-tubes contains distilled water and the other two contain an acidic and a basic solution respectively. If you are given only blue litmus paper, how will you identify the contents of each test-tube?
What happens when carbon dioxide gas is passed through lime water for a considerable time ?
Write equations of the reactions involved.
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Which of the following phenomena occur when a small amount of acid is added to water?
- Ionisation
- Neutralisation
- Dilution
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- Identify 'B' and 'C'.
- State the role of acid in this reaction.
- Write chemical equation for the reaction involved.
