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Question
Select the correct answer to the reactant added, to give the product in the preparation of hydrogen gas.
\[\ce{MgO + H2}\]
Options
dilute acid
dilute alkali
cold water
conc. alkali
boiling water
conc. acid
steam
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Solution
Reactant added to get the product:
\[\ce{MgO + H2:Boiling water}\]
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RELATED QUESTIONS
MATCH THE COLUMNS
| column A | column B |
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| 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 |
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