Advertisements
Advertisements
प्रश्न
On heating which of the following substances i.e. copper carbonate, zinc carbonate, washing soda, copper sulphate, zinc nitrate, copper nitrate, lead nitrate, ammonium chloride and ammonium dichromate – relate to the reaction given below.
A coloured substance which leaves on strong heating a black residue and evolves two colourless gases one of which is acidic and the other neutral.
Advertisements
उत्तर
Copper sulphate [CuSO].
APPEARS IN
संबंधित प्रश्न
State whether the following statement is true or false. In case a statement is false, write the corrected statement.
Formation of manure from leaves is a physical change.
Define the following term:
Precipitate
What do you observe? When
Barium chloride is added to sodium sulphate solution
Give reason for the following:
Electrolytic decomposition of water is a reaction involving change of state.
Complete the table given below.
| Heat on ammonium dichromate | Name of neutral gas evolved |
Higher order Thinking question
A very hot glass on putting in cold water cracks. What does this change indicate?
Give an example of a chemical reaction for the following situation:
A change in colour is observed
Beating an egg to make a cake is a ______.
Write the equation for the process of formation of rust.
Write a note on the following:
Curdling of milk
