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प्रश्न
Fill in the blank
The word acid comes from latin word acidus meaning _________
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उत्तर
The word acid comes from the latin word acidus meaning 'sour'.
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संबंधित प्रश्न
Name one natural source of the following acid:
Citric acid
The indicator which produces a pink colour in an alkaline solution is ______.
What happens during a wasp sting? What is its remedy?
Bee sting contains ______.
Which gas is usually liberated when an acid reacts with a metal? Illustrate with an example. How will you test for the presence of this gas?
Identify the following solutions, whether they are acid or base.
| Solution | Change in Indicator | Acid/Base | ||
| Litmus | Phenolphthalein | Methyl orange | ||
| 1. | -- | No change | -- | |
| 2. | -- | -- | Orange colour turns red | |
| 3. | Red litmus turns blue | -- | -- | |
Two acids ‘A’ and ‘B’ are given. Acid A gives one hydrogen ion per molecule of the acid in solution. Acid B gives two hydrogen ions per molecule of the acid in solution.
- Find out acid A and acid B.
- Which acid is called the King of Chemicals?
Acids are ______ in taste.
Complete the following equation.
Na2CO3 + 2HCl → ______ + ______ + CO2↑
Why does blue color copper sulphate become white on heating?
