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प्रश्न
Write the balanced equation for the reaction of:
A named acid and a named alkali.
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उत्तर
\[\ce{\underset{Alkali}{NaOH} + \underset{Acid}{HCl}-> NaCl + H2O}\]
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संबंधित प्रश्न
Give one example in the following case:
A hydroxide which is highly soluble in water.
Give one example in the following case:
A basic oxide which is insoluble in water.
Give one example in the following case:
An oxide which is a base.
What is the difference between an alkali and a base?
Bases are soapy to touch when they are dry.
Match the important chemicals given in Column (A) with the chemical formulae given in Column (B)
| Column (A) | Column (B) |
| (a) Plaster of Paris | Ca(OH)2 |
| (b) Gypsum | CaSO4. 1/2 H2O |
| (c) Bleaching Powder | CaSO4.2H7O |
| (d) Slaked Lime | CaOCl2 |
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 |
What is the role of toothpaste in the prevention of tooth decay?
Which of the following solutions do not conduct electricity?
