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chemistry
some important reactions and catalysts
Question | Answer |
---|---|
.Two reactants mutually transfer their respective groups to form two new compounds in double decomposition reaction. The reaction CaCO3 CaO + CO2 is an example of | Displacement Reaction |
An insoluble precipitate is formed in precipitation reaction. In neutralisation reaction, an acid and a base combines to form a salt and water. Hydrolysis of sodium carbonate gives | Sodium Hydroxide (NaOH) and Carbonic Acid (H2CO3) |
Isomerisation reaction is also called Rearrangement reactions. It is common in organic compounds. Heat is released in | Exothermic Reactions |
Energy released or absorbed after completing a chemical reaction is called | heat of reaction |
, Photochemical reactions activates by absorbing sunlight. The branch of Chemistry, which study these reactions, is called | Photochemistry |
Catalysts alter the rate of any reaction without undergoing any change in itself. Such reactions are called Catalytic reactions. Biochemical catalysts are called | Enzymes |
The enzymes possess specific nature. Optimum temperature for their activity ranges from | 298 K to 310K |
2MgO + O22MgO | Combination reaction |
Zn + CuSO4 ZnSO4 + Cu | Displacement reaction |
Na2SO4 + BaCl2 BaSO4 +2NaCI | Double decomposition reaction |
AgNO3 + NaCI AgCl + NaNO3 | Precipitation reaction |
NaOH + HCI NaCI + 2H2O | Neutralisation reaction |