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प्रश्न
When _______________ is passed through fresh lime water, it turns milky.
विकल्प
H2
CO2
CO
SO2
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उत्तर
When CO2 is passed through fresh lime water, it turns milky.
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संबंधित प्रश्न
Dilute NaOH can be tested with
(a) red litmus paper
(b) blue litmus paper
(c) lime water
(d) Na2CO3
| Column A | Column B | ||
| i | eosin | 1 | losing hydrogen |
| ii | oxidation | 2 | synthetic indicator |
| 3 | losing oxygen | ||
| 4 | natural indicator |
From which plant is litmus paper or litmus solution obtained?
- Moss
- Rose
- Hibiscus
- Lichen
Dry HCl gas does not change the colour of dry blue litmus paper. Why?
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Complete and balance the following chemical equation:
\[\ce{Na2CO3_{(s)} + HCl_{(aq)} ->}\]
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