Advertisements
Advertisements
प्रश्न
Complete and balance the equation:
[General method]
Reactions of metals with dilute acids
Magnesium - Mg + 2HCl → ______+ _______ [g]
Advertisements
उत्तर
Magnesium - Mg + 2HCl → MgCl2 + H2 [g]
APPEARS IN
संबंधित प्रश्न
A metal ______ hydrogen in the reactivity series gives hydrogen with ______.
Fill in the blank
Hydrogen reacts with metal oxides to form ............and....................
Match the statements in Column A with those in Column B.
| Column A | Column B |
|
1. A metal which reacts with cold water to from hydrogen. |
1. Reduction |
| 2. A gas which is inflammable and non-supporter of combustion | 2. Hydrogenation |
|
3. A process in which vanspati ghee is prepared from vegitable oils |
3. oxidation |
|
4. The removal ofhydrogen or addition of oxygen |
4. sodium |
| 5. The addition of hydrogen or removal of oxygen | 5. Hydrogen |
Multiple Choice Question
Water gas is a mixture of
FILL IN THE BLANK
In electrolysis of water, dilute sulphuric acid is added to increase ..................of water.
Which metal is preferred for the preparation of hydrogen?
from acid?
Why nitric acid is not used in the preparation of hydrogen?
‘Hydrogen is obtained by electrolysis of acidified water’.
Answer the following pertaining to the preparation of hydrogen by electrolysis,
The meaning of the term ‘electrolysis’ and ‘electrolyte’.
Starting from hydrogen gas how would you obtain a neutral liquid.
Name an element whsich reacts violently with water at room temperature.
