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प्रश्न
What is noticed if the products are not allowed to escape?
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उत्तर
If the product formed, i.e. hydrogen is not removed, then the iron oxide formed is reduced back to iron.
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संबंधित प्रश्न
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........................... means ‘maker of water’ in Greek.
Complete the following word equation:
Sodium hydroxide + zinc → hydrogen + _________
For laboratory preparation of hydrogen, give the following:
materials used
Where does hydrogen occur in a free state?
Hydrogen can be prepared with the help of cold water. Give a reaction of hydrogen with:
A divalent metal
Select the correct options for the following statement:
The metal which reacts with steam liberating hydrogen & the reaction is reversible.
Select the correct options for the following statement:
A foul smelling gas formed when hydrogen reacts with a molten non-metal, is ___.
Complete and balance the equation:
[General method]
Reactions of metals with dilute acids
Iron - Fe + 2HCl → ______ + _______ [g]
Complete and balance the equation:
[General method]
Reactions of metals - alkali [conc. soln.]
Lead - Pb + 2NaOH → ______ + _______ [g]
Give a balanced equation for the following conversion.
\[\ce{CO + H2<-H2O->CO2 + H}\]
