Not all bases are soluble in water. Those that are soluble are called alkalies. Sodium hydroxide, potassium hydroxide and calcium hydroxide are alkalies. All alkalies are bases but all bases are not alkalies.
Strong bases: Some bases are readily soluble in water. These are strong bases. There are also called alkalies for example: Sodium hydroxide and Potassium hydroxide.
Weak bases: Some bases are insoluble or partly soluble in water such bases are called weak bases.For example: Ammonium hydroxide, Calcium hydroxide, etc.
Name of Base | Found in | |
(i) | Calcium hydroxide | Lime water |
(ii) | Ammonium hydroxide | Window cleaner |
(iii) | Sodium hydroxide | Soap |
(iv) | Potassium hydroxide | Soap |
(v) | Magnesium hydroxide | Milk of Magnesia |
Which of the following are correct : (a) Acids turn pink colour of Phenolphthalein to colourless. (b) Bases change the colour of Methyl Orange from Orange/Yellow to Pink. (c) Bases change the colour of litmus from red to blue. | |||
Right Option : C | |||
View Explanation |
Ants Sting contains _______________ acid. | |||
Right Option : D | |||
View Explanation |
Among the following, identify the pair of water soluble bases. | |||
Right Option : C | |||
View Explanation |
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