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प्रश्न
Match the column in the following table.
| Reactants | Products | Type of chemical reaction |
| BaCl2(aq) + ZnSO4(aq) | H2CO3(aq) | Displacement |
| 2AgCl(s) | FeSO4(aq) + Cu(s) | Combination |
| CuSO4(aq) + Fe(s) | BaSO4↓ + ZnCl2(aq) | Decomposition |
| H2O(l) + CO2(g) | 2Ag(s) + Cl2(g) | Double displacement |
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उत्तर
| Reactants | Products | Type of chemical reaction |
| BaCl2(aq) + ZnSO4(aq) | BaSO4↓ + ZnCl2(aq) | Double displacement |
| 2AgCl(s) | 2Ag(s) + Cl2(g) | Decomposition |
| CuSO4(aq) + Fe(s) | FeSO4(aq) + Cu(s) | Displacement |
| H2O(l) + CO2(g) | H2CO3(aq) | Combination |
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संबंधित प्रश्न
MULTIPLE CHOICE QUESTIONS
Tick the most appropriate answer.
Reduction is a chemical reaction in which there is
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- removal of oxygen
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Complete the statement by filling the gaps using appropriate term from the terms given in the bracket.
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Electron ______ is complete in each hydrogen in a hydrogen molecule.
Give an example of the following chemical change.
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Write the chemical reaction where the following changes are observed.
Gas is evolved
Explain,giving one example of the following chemical changes:
Reversible reaction
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NaOH + HCl → NaCl + H2O
Complete and balance the following reaction:
\[\ce{CuCO3 ->[\Delta]}\]
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| Hydrogen | Oxygen | Carbon dioxide | Chlorine | |
| Litmus test | ||||
| Apply a burning splint to the gas | ||||
| Colour of gas | colourless | colourless | colourless | greenish-yellow |
| Odour of gas |
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Complete the table given below.
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Complete the table given below.
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Complete the table given below.
| Heat on sodium chloride | Colour imparted to flame during flame test |
A chemical change may involve –
Classify the following processes into physical or chemical changes:
- Beating of aluminium metal to make aluminium foil.
- Digestion of food.
- Cutting of a log of wood into pieces.
- Burning of crackers.
Rusting of iron is ______.
How can we prevent rusting?
When milk is mixed with coffee decoction, the colour of milk and decoction changes due to ______.
What is the difference between reactants and products?
