Advertisements
Advertisements
प्रश्न
State the term defined by the following sentence:
A soluble base.
Advertisements
उत्तर
Alkali
संबंधित प्रश्न
Give one example in the following case:
A hydroxide which is insoluble in water.
Why indicator does not get affected by salt?
Oxides of metals are acidic in nature.
Write the balanced equation for the reaction of:
A named acid and a named alkali.
Bases are ______ in taste.
Write any four uses of bases.
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 |
Water-soluble bases are called ______.
