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प्रश्न
Boojho, Paheli and their friend Golu were provided with a test tube each containing China rose solution which was pink in colour. Boojho added two drops of solution ‘A’ in his test tube and got dark pink colour. Paheli added 2 drops of solution ‘B’ to her test tube and got green colour. Golu added 2 drops of solution ‘C’ but could not get any change in colour. Suggest the possible cause for the variation in their results.
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उत्तर
A’ is an acidic solution, China rose solution turns dark pink in acids. ‘B’ is a basic solution since China's rose solution turns green in the basic solution. ‘C’ is a neutral solution hence there is no change in the colour of the China rose solution.
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संबंधित प्रश्न
Give one example in the following case:
A basic oxide which is soluble in water.
Give one example in the following case:
A hydroxide which is highly soluble in water.
Give one example in the following case:
A base which does not contain a metal ion.
Oxides of metals are acidic in nature.
Metal corrodes due to salts.
Bases are chemical substances that are corrosive and ______ in taste.
Water-soluble bases are called ______.
Sodium carbonate is commercially called ______.
Match the following:
| 1. | Wasp sting | a. | Milk of magnesia |
| 2. | Common salt | b. | Acetic acid |
| 3. | Organic acid | c. | Sodium chloride |
| 4. | Antacid | d. | Vinegar |
Choose the most appropriate answer from
(SO2, SiO2, Al2O3, CO, MgO, Na2O)
A basic oxide.
