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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.
विकल्प
Nickel
Sodium
Iron
Iron [III] oxide
Magnesium oxide
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उत्तर
Magnesium oxide
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संबंधित प्रश्न
Which metal is preferred for the preparation of hydrogen?
from water?
Why nitric acid is not used in the preparation of hydrogen?
Why hot concentrated sulphuric acid is not used in the preparation of hydrogen?
Hydrogen can be prepared with the help of cold water. Give a reaction of hydrogen with:
A monovalent metal
Complete and balance the following reaction.
Zn + HCl →_____________ +___________
Complete and balance the equation:
[General method]
Reactions of metals with dilute acids
Aluminium - 2Al + 3H2SO4 → ______+ _______ [g]
Account for the following fact:
Though lead is above hydrogen in the activity series, it does not react with dilute hydrochloric acid or dilutes sulphuric acid.
State the reactant added to hydrogen to obtain the respective product in following case.
Ammonia
Select the correct answer to the reactant added, to give the product in the preparation of hydrogen gas.
\[\ce{NaAlO2 + H2}\]
Give a reason for the following.
Granulated zinc is preferred to metallic zinc in the preparation of hydrogen using dilute acid.
