Advertisements
Advertisements
प्रश्न
Give a word equation for the following reaction.
Two solids which combine on heating, to give a liquid.
Advertisements
उत्तर
Carbon + Sulphur → Carbon disulphide
C + S → CS2 (l)
APPEARS IN
संबंधित प्रश्न
How do the following help in bringing about a chemical change?
catalyst .
TRUE \ FALSE
Ammonia is a good oxidizing agent.
Balance the following equation :
Fe + H2O → Fe3O4 + H2
Name the type of chemical reaction shown by the following equation :
Fe2O3 + 2Al → Al2O3 + 2Fe
Give an example of a reaction where the following are involved
Light
Write the chemical reaction where the following changes are observed.
Physical state is changed
Give reason for the following:
Silver nitrate solution is kept in coloured bottles.
Complete and balance the following reaction:
\[\ce{Pb(NO3)2 ->[\Delta]}\]
Give reason for the following:
Electrolytic decomposition of water is a reaction involving change of state.
Give reason for the following:
A characteristic change of colour is seen when a piece of iron is added to copper [II] sulphate solution.
Complete the table given below.
| Heat on ammonium dichromate | Name of neutral gas evolved |
State the following reaction represent oxidation or reduction.
\[\ce{Ag->Ag+}\]
Name the solid residual product formed reaction and state its colour during – thermal decomposition of the following substance.
Calcium hydroxide.
Mention the various conditions required for a chemical reaction to occur.
The water we drink is a combination of hydrogen and oxygen.
Melting of wax is a change where a solid changes to liquid state. Give one more such change which you observe in your surroundings
Iron benches kept in lawns and gardens get____________. It is a _________ change because a new _________ is formed.
Heat may evolve or be absorbed during a ______ change.
Explain how the painting of an iron gate prevents it from rusting.
Photosynthesis is a chemical charge. Justify your answer.
