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प्रश्न
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 |
उत्तर
| Column A | Column B |
|
1. A metal which reacts with cold water to from hydrogen. |
4. sodium |
| 2. A gas which is inflammable and non-supporter of combustion | 5. Hydrogen |
|
3. A process in which vanspati ghee is prepared from vegitable oils |
2. Hydragenation |
|
4. The removal hydrogen or addition of oxygen. |
3. oxidation |
| 5. The addition hydrogen or removal of oxygen | 1. Reduction |
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संबंधित प्रश्न
MULTIPLE CHOICE QUESTIONS
Hydrogen burns in oxygen to form
- hydrogen sulphide
- nitrates
- water
- ammonia
TRUE \ FALSE
reacts with hot water to form copper oxide and hydrogen.
Hydrogen may be prepared in the laboratory by the action of a metal on an acid.
Which of the metals copper, zinc, magnesium or sodium would be the most suitable?
Why are the following metals not used in the lab preparation of hydrogen?
calcium
‘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 basic gas.
Starting from hydrogen gas how would you obtain a metal by reduction of its heated oxide.
Select the correct options for the following statement:
A foul smelling gas formed when hydrogen reacts with a molten non-metal, is ___.
On heating which of the following substances i.e. copper carbonate, zinc carbonate, washing soda, copper sulphate, zinc nitrate, copper nitrate, lead nitrate, ammonium chloride and ammonium dichromate – relate to the reaction given below.
An efflorescent substance which leaves a residue having the same colour as the substance and evolves a gas which changes the colour of cobalt chloride paper.
State the reactant added to hydrogen to obtain the respective product in following case.
Hydrogen sulphide
