Advertisements
Advertisements
प्रश्न
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 ______.
पर्याय
Smelting
Ore dressing
Calcination
bessemerisation
उत्तर
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 calcination.
APPEARS IN
संबंधित प्रश्न
Name the following: Main ore of aluminium.
Which of the following pairs will give displacement reactions?
Write the steps involved in the extraction of pure metals in the middle of the activity series from their carbonate ores.
The process by which sulphide ore is concentrated.
How is sodium metal extracted? Explain with the help of equation of the reaction involved.
Give the name of one ore of iron. Which iron compound is present in this ore? Write its chemical formula.
Some metallic oxides can be reduced by hydrogen, carbon and carbon monoxide and some cannot. Explain.
How an ore is concentrated by froth floatation process?
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.
Explain Bayer’s process.