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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?
Give a reasons for the following:
Carbonate and sulphide ores are usually converted into oxides during the process of extraction of metals.
How is manganese extracted from manganese dioxide, MnO2? Explain with the help of an equation.
A zinc ore on heating in air forms sulphur dioxide. Describe briefly any two stages involved in the conversion of this concentrated ore into zinc metal.
Name two metals which are always found in combined state.
Which metal is extracted from cinnabar ore?
Which metal is extracted from bauxite ore?
Which metal can be extracted from the following ore?
Calamine
Give the principles of electromagnetic separation.
Name the following:
Two metals which are found in the free or native state.
Arrange the metals of copper, iron, magnesium, sodium and zinc in the decreasing order of reactivity.
Compare the properties of a typical metal and a non- metal on the basis of the following:
(a) electronic configuration
(b) nature of oxides
(c) oxidizing or reducing action
(d) conductivity of heat and electricity
Which one of the following is not true of metal :
Metals are good conductors of electricity.
Which one of the following is not true of metal :
Metals are malleable and ductile
Extraction of moderately reactive elements is done by _______ and _______ method.
Explain in brief types of extraction of highly reactive metals according to their reactivity.
The highly reactive metals like Sodium, Potassium, Magnesium, etc. are extracted by the ____________.
Which of the following metals exist in their native state in nature?
(i) Cu
(ii) Au
(iii) Zn
(iv) Ag
The given reaction shows one of the processes to extract the metals like Iron and Manganese.
\[\ce{MnO2(s) + Al(s) -> Mn(l) + Al2O3(s) + Heat}\]
Identify the substance oxidised and reduced in the above reaction.
