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Question
Select the correct options for the following statement:
The metal which reacts with steam liberating hydrogen & the reaction is reversible.
Options
Nickel
Sodium
Iron
Iron [III] oxide
Magnesium oxide
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Solution
Iron
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RELATED QUESTIONS
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 |
What is noticed if the products are not allowed to escape?
For laboratory preparation of hydrogen, give the following:
materials used
Give reason for the following:
Purified and dried hydrogen is collected over mercury.
Why are the following metal not used in the lab. preparation of hydrogen?
iron
Why are the following metals not used in the lab. preparation of hydrogen?
aluminium
Starting from hydrogen gas how would you obtain a basic gas.
Select the correct options for the following statement:
The product formed on combustion of hydrogen in air is ___.
Complete and balance the equation:
[General method]
Reactions of metals with dilute acids
Iron - Fe + 2HCl → ______ + _______ [g]
State the reactant added to hydrogen to obtain the respective product in following case.
Hydrogen sulphide
