Advertisements
Advertisements
प्रश्न
Distinguish between acid and alkali (other than indicators).
Advertisements
उत्तर १
An acid is that substance which gives H+ ions when dissolved in water.
An alkali is that substance which gives OH− ions when dissolved in water.
उत्तर २
Acids: Have a sour taste.
Alkalis: They have a Sharp bitter taste, and they are soapy to the touch.
APPEARS IN
संबंधित प्रश्न
Main constituent of base is ______.
Salts are neutral.
What is the difference between an alkali and a base?
All bases are alkalis.
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 |
Match the following:
| 1. | Wasp sting | a. | Milk of magnesia |
| 2. | Common salt | b. | Acetic acid |
| 3. | Organic acid | c. | Sodium chloride |
| 4. | Antacid | d. | Vinegar |
Which of the following solutions do not conduct electricity?
______ alkali has a relatively high percentage of alkali in its aqueous solution.
Al(OH)3 & Zn(OH)2 are not alkalis.
One of the events that does not occur during photosynthesis is ______.
