Advertisements
Advertisements
प्रश्न
Write word equations for two chemical reactions with the help of materials given in the box.
| Air, copper sulphate, iron, vinegar, iron oxide, carbon dioxide, iron sulphate, copper, lime water, water |
Advertisements
उत्तर
- Iron + Air + Water → Iron oxide
- Copper sulphate + Iron → Iron sulphate + Copper
APPEARS IN
संबंधित प्रश्न
Differentiate between in Chemical reaction and chemical equation.
A chemical equation is a statement that describes a chemical change in terms of
Explain by writing a word equation.
Limestone powder disappears on adding to dilute hydrochloric acids.
What do you observe when dilute sulphuric acid is added to the following:
Sodium Sulphide
Select the correct answer for the following options:
The gas which reacts with oxygen to give a neutral liquid.
Complete the table given below.
| Addition of dil. H2SO4 to FeS | Odour of gas evolved |
Match the chemical reactions in List I with the appropriate answer in List II.
| List I | List II | ||
| 1. | \[\ce{XY⇌[heat]X + Y}\] | A: | Displacement reaction |
| 2. | \[\ce{XY->X + Y}\] | B: | Double decomposition |
| 3. | \[\ce{X+Y- + A+B^-->X+B- + A+Y-}\] | C: | Endothermic reaction |
| 4. | \[\ce{X + YZ->XZ + Y}\] | D: | Thermal dissociation |
| 5. | \[\ce{X + Y->[heat]XY -\Delta}\] | E: | Decomposition reaction |
Name the solid residual product formed reaction and state its colour during – thermal decomposition of the following substance.
Copper nitrate.
Photosynthesis is a chemical reaction that takes place in the presence of ______.
Write a note on the catalyst.
