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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
Write the balanced chemical equation for the following reaction.
\[\ce{Aluminium + Copper chloride -> Aluminium chloride + Copper}\]
How will you indicate the following effect in a chemical equation?
A solution made in water.
Write word equation for the following skeletal equation:
\[\ce{Na + O2 -> Na2O}\]
Balance the equation stepwise.
H2S2O7(l) + H2O(l) → H2SO4(l)
Balance the following equation:
PbS + O2 → PbO + SO2
Write the balanced chemical equation of the following reaction.
zinc sulphide + oxygen → zinc oxide + sulphur dioxide
\[\ce{MnO2 + 4HCl -> MnCl2 + 2H2O + Cl2}\]
0.02 moles of pure MnO2 is heated strongly with conc. HCl. Calculate the volume of chlorine gas formed at S.T.P.
Write a balanced equation for the following word equation:
Potassium bicarbonate → Potassium carbonate + Water + Carbon dioxide
Write an Explanation.
Balanced equations
Balance the given chemical reaction as per the instructions below.
\[\ce{NaOH + H2SO4 -> Na2SO4 + H2O}\]
Make a list of the elements in the chemical equation.
