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प्रश्न
Name the following:
A catalyst which increases the rate of a chemical reaction.
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उत्तर
Manganese dioxide (MnO2).
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संबंधित प्रश्न
Write the balanced chemical equation for the following reaction.
\[\ce{Aluminium + Copper chloride -> Aluminium chloride + Copper}\]
Balance the given equation:
AI2(SO4)3 +NaOH 
AI(OH)3 + Na2SO4
Balance the given chemical equation:
NH3 → N2 + H2
Balance the equation stepwise.
H2S2O7(l) + H2O(l) → H2SO4(l)
Write the balanced chemical equation of the following reaction.
aluminium sulphate + sodium hydroxide → sodium sulphate + sodium meta aluminate + water.
Give a balanced equation for addition of iron to copper [II] sulphate solution. State the change in colour seen.
In certain reaction a change of state is observed i.e. solid to liquid, liquid to gas etc. – State the change of state of the products – to give the respective reactant.
2H2 + O2 → 2H2O
Give one example in the case where supplying energy [given below] is necessary for a chemical reaction.
Pressure
What is meant by ‘reactants’ and ‘products’ in a chemical equation?
Balance the following simple equation:
FeCl2 + Cl2 → FeCl3
