Advertisements
Advertisements
प्रश्न
Select the correct answer for the following options:
The gas obtained when potassium chlorate is heated in the presence of a catalyst.
पर्याय
Hydrogen
Copper [II] oxide
Oxygen
Copper [II] hydroxide
Ammonia
Advertisements
उत्तर
Oxygen
APPEARS IN
संबंधित प्रश्न
Define catalyst.
What are chemical reactions?
Write a short note on the information derived from a balanced chemical equation.
Fill in the blank
A change in which the substance can be brought back to its original state is called a _______ change.
Define chemical reaction.
Fill in the blank:
In some chemical reactions an insoluble ________ is formed when two solutions are mixed.
Explain the following reaction with one suitable example of Double decomposition reaction.
Give a chemical test to distinguish between the following gases.
H2 and O2
Distinguish by heating the following in dry test tubs.
Zinc nitrate and copper nitrate.
Distinguish by dilute sulphuric acid.
Sodium sulphide and sodium sulphite?
Complete the table given below.
| Heat on iodine crystals | Colour of vapours evolved |
State the following reaction represent oxidation or reduction.
\[\ce{Ag->Ag+}\]
State whether the following reaction is oxidation or reduction.
\[\ce{Na->Na+}\]
_____ is the basic material to manufacture urea.
Can a nickel spatula be used to stir copper sulphate solution? Justify your answer.
Which of the following statement is incorrect for a chemical reaction?
Give an example of a chemical reaction for the following situation:
A change in colour is observed
______ is the chemical name of slaked lime.
What are the chemical reactions that occur in everyday life?
