Give an example of the following chemical change:
Formation of a dirty green precipitate.
Important Questions on Chemical Changes and Reactions
Give an example of the following chemical change:
Gases combine to form a white solid.
Give an example of the following chemical change:
Two solids combine to form a liquid.
Give an example of the following chemical change:
A reaction where the colour change is noticed.
Write a chemical reaction where the following change is observed.
Gas is evolved.
Write a chemical reaction where the following change is observed.
Colour change is noticed.
Write a chemical reaction where the following change is observed.
A precipitate is formed.
Write a chemical reaction where the following change is observed.
The physical state of reactants is changed.
Give reason for the following :
Silver nitrate solution is kept in coloured bottles.
