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Question
Complete and balance the equation:
[General method]
Reactions of metals with steam
Aluminium - 2Al + 3H2O → ______+ _______ [g]
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Solution
Aluminium - 2Al + 3H2O → Al2O3 + 3H2 [g]
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Give reason for the following:
Though hydrogen is lighter than air it cannot be collected by downward displacement of air.
Name the following:
Two metals which give hydrogen with cold water.
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.
MATCH THE COLUMNS
| column A | column B |
| 1. `""2H_2 + O_2 → 2H_2O` | A. This reaction is not possible |
| 2. `""H_2+CI_2 →2HCI` | B.This reaction is exothermic to the extent of explosion |
| 3.`""ZaO+ H^2→Zn +H_2O` | C.This reaction is known as Haber process |
| 4.`""Cu + H_2SO^4 → CuSO_4 + H_2 ` | D.This reaction illustrates the reducing property of bydrogen |
| 5.`""N_2 +3H_2 → 2NH_3 +heat ` | E. This reaction takes place in diffused sunlight |
| F. This reaction is a method of preparation of hydrogen |
Hydrogen gas is collected by the downward displacement of water. Give reason ?
What is noticed if the products are not allowed to escape?
Select the correct options for the following statement:
The metal which reacts with steam liberating hydrogen & the reaction is reversible.
Complete and balance the equation:
[General method]
Reactions of metals with steam
Magnesium - Mg + H2O → ______+ _______ [g]
State the reactant added to hydrogen to obtain the respective product in following case.
Ammonia
