Reaction with Metal Sulphites and Bisulphites
Trending Questions
Q.
Baking soda is which type of salt?
Acidic salt
Basic salt
Q.
Sodium sulphite Na2SO3 , reacts with nitric acid HNO3.
False
True
Q. An aqueous solution of sodium hydroxide is known as a brine solution.
- True
- False
Q. When an acid reacts with the metal carbonate will form bubbles giving off carbon dioxide gas and the other products namely :
- salt and water
- water and heat
- salt and base
- base and heat
Q. Why does limewater turn milky when carbon dioxide gas is passed through it?
- Due to the formation of calcium carbonate.
- Due to the formation of calcium hydroxide.
- Because hydrogen gas is released.
- Because calcium hydroxide reacts with hydrogen gas.
Q.
When sodium hydrogen carbonate is added to nitric acid which of the following is formed?
Sodium nitrate
Sodium carbonate
Water
Carbon dioxide
Q. An aqueous solution of sodium hydroxide is known as a brine solution.
- True
- False
Q. On passing excess of ammonia, Nessler's reagent solution changes its colour to _______.
- reddish brown
- blue
- greenish yellow
- pale red
Q.
Identify 'A' and 'B' in the following reactions
(i) KNO3+KHSO4→A+HNO3
(ii) KNO3+H2SO42000c−−−→KHSO4+B
Potassium sulphate & nitrous acid
Potassium bisulphate & nitrous acid
Potassium sulphate & nitric acid
Potassium nitrite & nitrogen dioxide
Q. Na2CO3 and NaHCO3 may be distinguished by treating their aqueous solutions with:
- dil. Acetic acid
- MgO
- Phenolphthalein
- None