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 Lead nitrate is heated.
Certain thermal decomposition reaction, resulting in the formation of the oxide. Give a balanced equation for the thermal decomposition of the following, which result in the formation of metallic oxide.
Calcium hydroxide
\[\ce{Ca[OH]2->[\Delta]CaO + H2O}\]
State the meaning of the term ‘oxide’.
Give a balanced equation for the formation of the following oxide –
Zinc oxide from a metal
Give a balanced equation for the formation of the following oxide –
Lead oxide from a mixed Oxide.
Give the example of the acidic oxide, basic oxide, amphoteric oxide and neutral oxide. State which of the oxide react with water to give a base.
Give one example of –
A peroxide
Give one example of –
A dioxide
Select the correct answer for the statement given below:
The neutral gas obtained on thermal decomposition of potassium nitrate.
Differentiate between the following:
An acidic oxide and a basic oxide.
