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प्रश्न
A student took a solution of copper sulphate in a beaker and put a clean iron nail into it and left it for about an hour.
Write a word equation for the chemical change, if any.
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उत्तर
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संबंधित प्रश्न
How do the following help in bringing about a chemical change?
light.
TRUE \ FALSE
Copper can displace iron from iron sulphate.
What do you observe when :
an iron nail is kept in tap water for few days
| 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 |
Explain by writing a word equation.
Limestone powder disappears on adding to dilute hydrochloric acids.
Write the chemical reaction where the following changes are observed.
Gas is evolved
Higher order Thinking question
Peeled and unpeeled banana does not look the same. Does that mean peeling banana is a chemical change?
Which of the following is not an “element + element → compound” type reaction?
When magnesium is burnt in the air, a new substance is formed which is ______.
What are the chemical reactions that occur in everyday life?
