मराठी
महाराष्ट्र राज्य शिक्षण मंडळएस.एस.सी (इंग्रजी माध्यम) इयत्ता १० वी

Write the name. Strongly heating carbonate ores in insufficient air -

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प्रश्न

Write the name.

Strongly heating carbonate ores in insufficient air -

एक शब्द/वाक्यांश उत्तर
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उत्तर

Calcination

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  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 8: Metallugy - Write the name [पृष्ठ १९]

संबंधित प्रश्‍न

The non-metal present in steel is ______.


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 the gas produced when calamine ore is calcined.


Name two metals which are found in nature mainly in the free state (as metallic elements).


Name two ores of zinc. Write the names of the chemical compounds present in them and give their chemical formulae.


Aluminum is used in thermite welding:

write reaction for process?


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 an ore is concentrated by froth floatation process?


Compare the process of calcination and roasting.


What is passive iron?


Name : The metal which is liquid at room temperature.


Which one of the following is not true of metal :
Metals are good conductors of electricity.


Heating an ore in a limited supply of air or in the absence of air at a temperature just below its melting point is known as ______.


Write the molecular formulae of the following compound.

Sodium aluminate


Explain Bayer’s process.


Explain the reactions of nonmetals with water with the help of examples.


Explain the characteristics of ionic compounds.


Explain Bayer’s process of concentration of bauxite with a chemical equation.


The poorest conductor of heat among metals is ____________.


Two ores A and B were taken. On heating ore A gives CO2 whereas, ore B gives SO2. What steps will you take to convert them into metals?


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