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प्रश्न
Metal corrodes due to salts.
पर्याय
True
False
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उत्तर
This statement is True.
संबंधित प्रश्न
What do you understand by an alkali?
Give one example in the following case:
A basic oxide which is soluble in water.
Bases are soapy to touch when they are dry.
What are the similarities between acids and bases?
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.
Match the following:
| 1. | Sulphuric acid | a. | Weak base |
| 2. | Sodium hydroxide | b. | Strong acid |
| 3. | Acetic acid | c. | Strong base |
| 4. | Ammonium hydroxide | d. | Weak acid |
Bases ionise in water to form ______ ions.
______ are bitter in taste.
______ alkali has a relatively high percentage of alkali in its aqueous solution.
NaOH & KOH are strong bases.
