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प्रश्न
Name A colourless gas which bleaches.
उत्तर
SO2
APPEARS IN
संबंधित प्रश्न
The property by which certain hydrated salts, when left exposed to the atmosphere, lose their water of crystallization and crumble into powder.
Write a balanced chemical equation for Action of dilute hydrochloric acid on magnesium sulphite.
Complete and balance the following chemical equations:
`NaCl + NH_3 + H_2O +CO_2`→
What happens when a few drops of water are added to anhydrous copper sulphate? Explain with the help of an equation.
What is a salt?
A salt whose aqueous solution will have a pH of more than 7 will be:
(a) K2CO3
(b) K2SO4
(c) NaCl
(d) NH4Cl
name two salts which are acidic.
Hard water required for an experiment is not available in a school laboratory. However, following salts are available in the laboratory. Select the salts which may be dissolved in water to make it hard for the experiment.
|
(1) |
Calcium Sulphate |
(2) |
Sodium Sulphate |
|
(3) |
Calcium Chloride |
(4) |
Potassium Sulphate |
|
(5) |
Sodium Hydrogen Carbonate |
(6) |
Magnesium Chloride |
(A) 1, 2 and 4
(B) 1, 3 and 6
(C) 3, 5 and 6
(D) 2, 4 and 5
Name two carbonates do not produce carbon dioxide on heating.
Distinguish by a chemical test sodium chloride and sodium sulphite.
