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प्रश्न
Read the following passage and answer the questions.
According to the reactivity series, zinc is more reactive than iron, iron is more reactive than silver. During study of this, a student dipped the iron nails in silver nitrate solution.
- What is reactivity series?
- What will happen when iron nails are dipped in silver nitrate solution?
- Which type of reaction happens when iron metal reacts with silver nitrate solution?
- What will happen if a zinc rod is used instead of iron nail?
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उत्तर
- The arrangement of metals in the increasing or decreasing order of reactivity is called the reactivity series of metals.
- Iron nails react with silver nitrate solution to form ferrous nitrate and silver. Silver nitrate solution is colourless while the colour of ferrous nitrate solution is brown. Hence, the solution will turn brown.
- When an iron metal reacts with silver nitrate solution, a displacement reaction occurs.
- Zinc rod reacts with silver nitrate solution to form zinc nitrate and silver.
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संबंधित प्रश्न
Metallic oxides of zinc, magnesium and copper were heated with the following metals.
| Metal | Zinc | Magnesium | Copper |
| Zinc oxide | – | – | – |
| Magnesium oxide | – | – | – |
| Copper oxide | – | – | – |
In which cases will you find displacement reactions taking place?
Which of the following pairs will give displacement reactions?
How is copper extracted from its sulphide ore? Explain the various steps supported by chemical equations. Draw labelled diagram for the electrolytic refining of copper.
Why does a new aluminium vessel lose shine so soon after use?
Which one of the methods given in column I is applied for the extraction of each of the metals given in column II:
| Column I | Column II |
| Electrolytic reduction | Aluminium |
| Reduction with Carbon | Zinc |
| Reduction with Aluminium | Sodium |
| Iron | |
| Manganese | |
| Tin |
The major ore of aluminium is known as ______.
Which of the following is an ore of mercury metal?
Calamine ore can be converted into zinc oxide by the process of ______.
Give the principles of the froth floatation process.
Name the anode, the cathode and the electrolyte used in the electrolytic refining of impure copper.
What is galvanized iron.
Name : The metal which is liquid at room temperature.
To protect iron from rusting, it is coated with a thin layer of zinc. Name the process.
Name the following:
The process of heating an ore to a high temperature in the presence of air.
Which one of the following is not true of metal :
Metals are good conductors of electricity.
State three objectives achieved during the roasting of ores.
If Cu, Fe, Zn, Al elements are arranged in increasing order of their reactivity then the correct order would be which of the following?
Find the odd one out and give its explanation.
Explain in brief types of extraction of moderately reactive metals according to their reactivity.
A mineral from which the metal can be extracted economically and conveniently is known as ______.
