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Write the name. The process of strong heating of carbonate ores in insufficient air–

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प्रश्न

Write the name.

The process of strong heating of carbonate ores in insufficient air–

एक शब्द/वाक्यांश उत्तर
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उत्तर

The process of strong heating of carbonate ores in insufficient air– Calcination

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अध्याय 8: Metallugy - Write the name

संबंधित प्रश्न

In the electrolytic refining of a metal M, what would you take as anode, cathode and electrolyte?


In the extraction of aluminium: Write the function and formula of cryolite in the extraction of aluminium.


Name the most abundant metal in the earth’s crust.


The rocky material found with ores is called ______.


How is manganese extracted from manganese dioxide, MnO2? Explain with the help of an equation.


Give the name and chemical formula of one ore of copper.


Name one ore of copper (other than cuprite). Which compound of copper is present in this ore? Also, write its chemical formula.


Name the chemical compound which is electrolysed in molten state to obtain aluminium metal. Which gas is evolved during this process?


Name the gas evolved when cinnabar ore is roasted.


Name two metals which are always found in combined state.


The metal which can be extracted from pyrolusite ore is ______.


Metals X and Y can be recovered from the anode mud left behind after the electrolytic refining of copper metal. The coins made of metal X look new even after several years of use but the coins made of metal Y lose their shine gradually and get blackened soon. When metal X is alloyed with a small amount of metal Y, it becomes hard and hence suitable for making ornaments. What are metals X and Y? Also state the colour of metal X.


Give reasons, why aluminum is used in:

making alloys


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?


How many valence electrons are present in non- metals?


Iron is _______.


If Cu, Fe, Zn, Al elements are arranged in increasing order of their reactivity then the correct order would be which of the following?


In the electrolytic reduction of alumina, the lining of graphite acts as an anode.


An alloy is


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