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प्रश्न
Select the correct options for the following statement:
A metal which reacts with water to give a metallic hydroxide & liberate hydrogen.
विकल्प
Nickel
Sodium
Iron
Iron [III] oxide
Magnesium oxide
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उत्तर
Sodium
APPEARS IN
संबंधित प्रश्न
Fill in the blank
Hydrogen is ..................... than air.
Why nitric acid is not used in the preparation of hydrogen?
Why hot concentrated sulphuric acid is not used in the preparation of hydrogen?
Give a reason for the following:
Zinc granules are used in the lab preparation of hydrogen.
Hydrogen can be prepared with the help of cold water. Give a reaction of hydrogen with:
A monovalent metal
Hydrogen may be prepared in the laboratory by the action of a metal on an acid.
Which of the acids dilute sulphuric, concentrated sulphuric, dilute nitric acid and concentrated nitric acid would you choose? Explain why you would not use the acids you reject.
Complete and balance the following reaction.
Zn + NaOH →_____________ +___________
Complete and balance the equation:
[General method]
Reactions of metals with steam
Aluminium - 2Al + 3H2O → ______+ _______ [g]
State the reactant added to hydrogen to obtain the respective product in following case.
Water
State the reactant added to hydrogen to obtain the respective product in following case.
Hydrogen sulphide
