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प्रश्न
What is the difference between an alkali and a base?
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उत्तर
An alkali and a base:
1. Alkalis are soluble in water whereas bases may be or may not be soluble in water.
2. All alkalis are bases but all bases are not alkalis.
संबंधित प्रश्न
State some of the uses of mineral acids in industry.
What happens when bases react with non-metal oxides? Explain with the help of an example. What does this reaction tell us about the nature of non-metal oxides?
Bee stings can be treated with:
(a) vinegar
(b) sodium hydrogencarbonate
(c) potassium hydroxide
(d) lemon juice
Name a sodium compound which is a constituent of many dry soap powders.
What is the difference between an alkali and a metal hydroxide?
Write balanced equation to satisfy the following statement:
\[\ce{Acid + Sulphite or bisulphite -> Salt + water + sulphur dioxide}\]
State one observation for each of the following :
A small piece of zinc is added to dilute hydrochloric acid
Main constituent of acid is ______.
Give the name and formula of two : Strong monobasic acids
Match the substances in Column I with those in Column II.
| Column 1 | Column II | ||
| (a) | Tartaric acid | (i) | soap |
| (b) | Calcium hydroxide | (ii) | curd |
| (c) | Formic acid | (iii) | unripe mangoes |
| (d) | Sodium hydroxide | (iv) | ant’s sting |
| (e) | Lactic acid | (v) | lime water |
