Advertisements
Advertisements
Question
Give a reason why a catalyst is used in certain chemical reactions.
Advertisements
Solution
A catalyst is used to make the reaction fast or slow down it. When KClO3 is heated, oxygen is produced but the reaction is very slow. If we add MnO2 to KClO3 and heat the rate of production of oxygen becomes faster.
APPEARS IN
RELATED QUESTIONS
What do you observe when Phenolphthalein is added to sodium hydroxide solution.
What do you observe when Blue litmus paper is dipped in dilute hydrochloric acid.
What do you observe when Lead nitrate is heated.
Give two examples of oxides.
Amphoteric oxide
Give two examples of oxides.
Neutral oxide
Give a balanced equation for the formation of the following oxide –
Sulphur dioxide from a non-metal
Give the example of the acidic oxide, basic oxide, amphoteric oxide and neutral oxide. State which of the oxide react with a base to give salt and water.
Give the example of the acidic oxide, basic oxide, amphoteric oxide and neutral oxide. State which of the oxide react with acids and bases to give salt and water.
Give one example of –
A peroxide
Differentiate between the following:
An acidic oxide and a basic oxide.
