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प्रश्न
Select the correct options for the following statement:
The metallic compound formed when a metal above aluminium in the activity series reacts with steam.
पर्याय
Nickel
Sodium
Iron
Iron [III] oxide
Magnesium oxide
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उत्तर
Magnesium oxide
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संबंधित प्रश्न
Fill in the blank
Hydrogen is ..................... than air.
Fill in the blank
Hydrogen reacts with metal oxides to form ............and....................
Give reason for the following:
Though hydrogen is lighter than air it cannot be collected by downward displacement of air.
For laboratory preparation of hydrogen, give the following:
chemical equation
Why nitric acid is not used in the preparation of hydrogen?
Select the correct options for the following statement:
A foul smelling gas formed when hydrogen reacts with a molten non-metal, is ___.
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 active metals - cold water
Sodium - 2Na + 2H2O → ______+ _______ [g]
State the reactant added to hydrogen to obtain the respective product in following case.
Hydrogen chloride
State the reactant added to hydrogen to obtain the respective product in following case.
Hydrogen sulphide
