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प्रश्न
Wasp sting contains _______.
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उत्तर
Wasp sting contains alkaline substance.
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संबंधित प्रश्न
Distinguish between acid and alkali (other than indicators).
Write the balanced equation for the reaction of:
A named acid and a named alkali.
Bases are ______ in taste.
Chemical formula of calcium oxide is _______
State whether the following statement is true or false. Correct the false statement.
Lime water turns red litmus blue.
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.
Bases are chemical substances that are corrosive and ______ in taste.
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 |
Which of the following pairs are weak bases?
Choose the most appropriate answer from
(SO2, SiO2, Al2O3, CO, MgO, Na2O)
A basic oxide.
