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प्रश्न
Give one example in the case where supplying energy [given below] is necessary for a chemical reaction.
Catalyst
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उत्तर
Catalyst:
It is a substance which alters the rate of the reaction [i.e. increases or decreases the rate] without taking part in the reaction.It itself remains chemically unchanged at the end of the reaction.
Example: Catalytic oxidation of ammonia – using catalyst platinum
\[\ce{4NH3 + 5O2 ->[Pt][800°C] 4NO + 6H2O + \triangle}\]
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संबंधित प्रश्न
Rewrite the following information in the form of a balanced chemical equation:
Magnesium burns in carbon dioxide to form magnesium oxide and carbon.
Write symbolic representation for the following word equation and balance them :
Carbon + Oxygen → Carbon dioxide.
Balance the following equation. Also name the products formed.
`"Mg" + "O"_2 → "MgO"`
Explain the terms with examples.
Balanced equation
Balance the following equation:
PbO + NH3 → Pb + H2O + N2
Balance the following equation:
HNO3 + H2S → NO2 + H2O + S
Write the balanced chemical equation of the following reaction.
Potassium permanganate + hydrochloric acid → potassium chloride + manganese chloride + chlorine + water
Name the following:
Two non-metal which react explosively when brought in close contact.
Write a balanced equation for the following word equation:
Nitrogen dioxide + Water + Oxygen → Nitric acid
Write a balanced equation for the following word equation:
Potassium bromide + Chlorine → Potassium chloride + Bromine
