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प्रश्न
Why should the metal sulphides and carbonates be converted to metal oxides in the process of extraction of metal from them?
उत्तर
The extraction of metal becomes easier from its oxide than from its sulphide or the carbonate ore. That is why the metal sulphides and carbonates are converted to metal oxides in the process of extraction of metal from them.
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संबंधित प्रश्न
Write the steps involved in the extraction of pure metals in the middle of the activity series from their carbonate ores.
Name two metals which are highly resistant to corrosion.
How are the less reactive metals (which are quite low in the reactivity series) extracted? Explain with the help of an example.
Define the term mineral.
Name three other metals which are extracted in a manner similar to sodium.
Which of the following pair of metals exists in their native state in nature?
(a) Ag and Hg
(b) Ag and Zn
(c) Au and Hg
(d) Au and Ag
Observe the given figure of reactivity series of metals and answer the following questions:
Reactivity series of metals
- Name two metals which react with water.
- Name two moderately reactive metals.
- Name the most highly reactive metal and the most less reactive metal.
In Electrolytic reduction of alumina, Anode : _______ : : Cathode : Graphite lining
Explain the reactions of nonmetals with water with the help of examples.
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?
