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प्रश्न
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 | -- | -- | |
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उत्तर
| Solution | Change in Indicator | Acid/Base | ||
| Litmus | Phenolphthalein | Methyl orange | ||
| 1. | Blue litmus turns red | No change | The orange colour turns red | Acid |
| 2. | Blue litmus turns red | No change | Orange colour turns red | Acid |
| 3. | Red litmus turns blue | Colourless to pink | The orange colour turns yellow | Base |
संबंधित प्रश्न
Name the source from which litmus solution is obtained. What is the use of this solution?
Name one natural source of the following acid:
Citric acid
Give two examples of organic acids.
Write balanced equation to satisfy the following statement:
\[\ce{Acid + Sulphite or bisulphite -> Salt + water + sulphur dioxide}\]
Classify the following solutions as acids, bases or salts.
Ammonium hydroxide, barium chloride, sodium chloride, sodium hydroxide, H2SO4 and HNO3
The correct way of making a solution of acid in water is to ______.
Lemon juice and vinegar taste ______ because they contain ______.
A farmer was unhappy because of his low crop yield. He discussed the problem with an agricultural scientist and realised that the soil of his field was either too acidic or too basic. What remedy would you suggest the farmer to neutralise the soil?
The Acid secreted in our stomach is ______.
Consider the acidity of the carboxylic acids:
(1) PhCOOH
(2) o-NO2C6H4COOH
(3) p-NO2C6H4COOH
(4) m-NO2C6H4COOH
