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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 ...................soluble in water.
Hydrogen gas is collected by the downward displacement of water. Give reason ?
Where does hydrogen occur in a free state?
Select the correct options for the following statement:
A metal which reacts with water to give a metallic hydroxide & liberate hydrogen.
On heating which of the following substances i.e. copper carbonate, zinc carbonate, washing soda, copper sulphate, zinc nitrate, copper nitrate, lead nitrate, ammonium chloride and ammonium dichromate – relate to the reaction given below.
An efflorescent substance which leaves a residue having the same colour as the substance and evolves a gas which changes the colour of cobalt chloride paper.
Complete and balance the equation:
[General method]
Reactions of metals with steam
Magnesium - Mg + H2O → ______+ _______ [g]
Complete and balance the equation:
[General method]
Reactions of metals with dilute acids
Zinc - Zn + 2HCl → ______ + _______ [g]
Give a balanced equation for obtaining hydrogen from?
Steam using a trivalent metal
Select the correct answer to the reactant added, to give the product in the preparation of hydrogen gas.
\[\ce{Al2(SO4)3 + H2}\]
Give a balanced equation for the following conversion.
\[\ce{CO + H2<-H2O->CO2 + H}\]
