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Question
State the reactant added to hydrogen to obtain the respective product in following case.
Hydrogen chloride
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Solution
Reactant added to obtain:
Hydrogen chloride: Hydrogen and chlorine.
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Name the following:
Two metals which give hydrogen with cold water.
Multiple Choice Question
Water gas is a mixture of
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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 |
State how hydrogen occurs in the free state. Name three compounds containing hydrogen in the combined state.
Starting from hydrogen gas how would you obtain a basic gas.
Select the correct options for the following statement:
A foul smelling gas formed when hydrogen reacts with a molten non-metal, is ___.
Complete and balance the equation:
[General method]
Reactions of metals with dilute acids
Magnesium - Mg + 2HCl → ______+ _______ [g]
State the reactant added to hydrogen to obtain the respective product in following case.
Water
Select the correct answer to the reactant added, to give the product in the preparation of hydrogen gas.
\[\ce{Fe3O4 + H2}\]
