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प्रश्न
Complete flow chart given below.
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उत्तर
संबंधित प्रश्न
Name the most abundant metal in the earth’s crust.
Silver metal does not combine easily with oxygen but silver jewellery tarnishes after some time. How?
Name one metal which is extracted by:
Reduction with carbon.
Name one metal which is extracted by:
Electrolytic reduction.
Bronze is an alloy of copper and ______.
Give the name and chemical formula of one ore of copper.
Which metal is extracted from cinnabar ore?
Describe the extraction of zinc metal from its sulphide ore (zinc blende). Write equations of the reactions involved.
An ore of manganese metal is ______.
Name the anode, the cathode and the electrolyte used in the electrolytic refining of impure copper.
What is passive iron?
Write equations for each of the above metal which reacts with water.
How many valence electrons are present in non- metals?
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 :
Metal will have 1 or 2 or 3 electrons in their valence shell.
Name the following :
The Process of heating an ore to a high temperature in the presence of air.
How is the method of extraction of metals high up in the reactivity series different from that for metals in the middle? Why can the same process not be applied for them? Name the process used for the extraction of these metals.
In the electrolytic method, a layer of highly active metal is applied to a less active metal.
Explain in brief types of extraction of less reactive metals according to their reactivity.
Care must be taken while diluting concentrated nitric acid with water. Why?
