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प्रश्न
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.
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उत्तर
- Two metals that react with water: Potassium, sodium
- Two moderately reactive metals: Zinc, iron
- 1. Most highly reactive metal: Potassium
2. Most less reactive metal: Gold
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संबंधित प्रश्न
Name two metals which are found in nature in the free state.
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The process by which sulphide ore is concentrated.
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What is the difference between a mineral and an ore?
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The major ore of aluminium is known as ______.
Calamine ore can be used to extract one of the following metals. This metal is:
The metal which can be extracted from pyrolusite ore is ______.
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what is ignition mixture?
An element has its electron configuration as 2,8,8,2. Now answer the following questions.
a) What is the atomic number of this element?
b) What is the group of this element?
c) To which period does this element belong?
Name a non- metal that has a metallic luster and sublimes on heating.
Name the following:
The process of heating an ore to a high temperature in the presence of air.
choose the most appropriate term to match the given description.
Heating of the ore in the absence of air to high temperature
Define calcination.
What is the difference between calcination and roasting?
Explain in brief types of extraction of moderately reactive metals according to their reactivity.
