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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
Correct and balance the following equation:
Ca + H2O 
CaOH + H
Balance the following equation and add state symbols:
Zn + HCI → ZnCI2 + H2
Is Burning of natural gas an endothermic reaction or an exothermic reaction?
Name the various types of chemical reactions.
Write word equation for the following skeletal equation:
\[\ce{CO + O2 -> CO2}\]
A student weighed some raisins and recorded the weight as ‘x’. She then soaked the raisins in distilled water. After about 2 hours she removed the raisins, wiped them dry and weighed them again, and recorded that as ‘y’. The percentage of water absorbed by raisins may be determined using the relationship.
Balance the equation stepwise.
Ag(s) + HCl(aq) → AgCl ↓+ H2 ↑
Write down what you understood from the following chemical reaction.
AgNO3(aq) + NaCI(aq) → AgCI ↓ + NaNO3(aq)
Balance the following simple equation:
Zn + HCl → ZnCl2 + H2
Write a balanced equation for the following word equation:
Iron + Hydrochloric acid → Iron [II] chloride + Hydrogen
