Advertisements
Advertisements
प्रश्न
Sodium hydrogencarbonate when added to acetic acid evolves a gas. Which of the following statements are true about the gas evolved?
- It turns lime water milky
- It extinguishes a burning splinter
- It dissolves in a solution of sodium hydroxide
- It has a pungent odour
विकल्प
(i) and (ii)
(i), (ii) and (iii)
(ii), (iii) and (iv)
(i) and (iv)
उत्तर
(i), (ii) and (iii)
Explanation -
The gas evolved is carbon dioxide (CO2). The statements (i), (ii) and (iii) are true about the gas.
APPEARS IN
संबंधित प्रश्न
Write any four physical properties of base.
What are the uses of bases?
Alkalis are ____________.
Assertion: Ammonium hydroxide is a weak base.
Reason: Phenolphthalein becomes pink in NH2OH.
Sodium carbonate is a basic salt because it is a salt of
The common salt is ______.
Match the following:
| 1. | Sodium chloride | a. | Detergents |
| 2. | Sodium carbonate | b. | Purification of water |
| 3. | Sodium bicarbonate | c. | Taste to food |
| 4. | Potash alum | d. | Antacids |
Write the chemical equation for the reaction of bases with metal oxides.
What is Potash alum? Write its formula.
Write notes on the properties of bases.
