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प्रश्न
Give a balanced equation for the following conversion.
\[\ce{ZnO<-H2O->Fe3O4}\]
उत्तर
\[\ce{Zn + H2O->ZnO + H2}\]
\[\ce{3Fe + 4H2O⇌Fe3O4 + 4H2}\]
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संबंधित प्रश्न
Fill in the blank
Hydrogen is ...................soluble in water.
Give reason for the following:
Though hydrogen is lighter than air it cannot be collected by downward displacement of air.
FILL IN THE BLANK
........................... means ‘maker of water’ in Greek.
Complete the following word equation:
Sodium hydroxide + zinc → hydrogen + _________
Complete and balance the following reaction.
Na + H2O →_____________ +___________
Select the correct options for the following statement:
The acid _____ is not Used in the laboratory preparation of hydrogen, using zinc and an acid.
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.
Give a balanced equation for obtaining hydrogen from?
Steam using a metal – and the reaction is reversible.
Select the correct answer to the reactant added, to give the product in the preparation of hydrogen gas.
\[\ce{Fe3O4 + H2}\]
Give a balanced equation for the following conversion.
\[\ce{NH3<-H2->H2S}\]
