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प्रश्न
What is the chemical name of bleaching powder?
उत्तर
The chemical name of bleaching powder is calcium oxychloride.
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संबंधित प्रश्न
| Column A | Column B | ||
| i | eosin | 1 | losing hydrogen |
| ii | oxidation | 2 | synthetic indicator |
| 3 | losing oxygen | ||
| 4 | natural indicator |
Define an acid and a base. Give two examples of each.
What is the chemical formula of washing soda?
With which substance should chlorine be treated to get bleaching powder?
When _______________ is passed through fresh lime water, it turns milky.
What is a neutralization reaction? Give an example.
In the following schematic diagram for the preparation of hydrogen gas as shown in the figure, what would happen if following changes are made?
- In place of zinc granules, same amount of zinc dust is taken in the test tube
- Instead of dilute sulphuric acid, dilute hydrochloric acid is taken
- In place of zinc, copper turnings are taken
- Sodium hydroxide is taken in place of dilute sulphuric acid and the tube is heated.
Two salts 'X' and 'Y' are dissolved in water separately. When phenolphthalein is added to these two solutions, the solution 'X' turns pink and the solution 'Y' does not show any change in colour, therefore 'X' and 'Y' are:
What property do acids and bases have in common? Explain it with an example.
The metal that will not produce hydrogen gas when reacted with dilute acids.
