Advertisements
Advertisements
Question
Write the molecular formulae of the following compound.
Cryolite
Advertisements
Solution
Cryolite- Na3AlF6
APPEARS IN
RELATED QUESTIONS
In the extraction of aluminium: Write the function and formula of cryolite in the extraction of aluminium.
Define the term gangue.
Name one ore of sodium. Name the sodium compound present in this ore and write its chemical formula.
Which metal is extracted from bauxite ore?
Name one ore of mercury. Which mercury compound is present in this ore? Write its chemical formula.
Which of the following is an ore of mercury metal?
Give reasons, why aluminum is used in:
In aluminiothermy
Compare the properties of a typical metal and a non- metal on the basis of the following:
(a) electronic configuration
(b) nature of oxides
(c) oxidizing or reducing action
(d) conductivity of heat and electricity
To protect iron from rusting, it is coated with a thin layer of zinc. Name the process.
Name the following:
A compound which is added to lower the fusion temperature of the electrolytic bath in the extraction of aluminium.
Name the following:
The process of heating an ore to a high temperature in the presence of air.
Zinc blende is converted to oxide by ______ process.
What is the difference between calcination and roasting?
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.
Find the odd one out and give its explanation.
Explain the concept of Calcination.
Explain the reactions of nonmetals with water with the help of examples.
Explain the difference between Bayer’s process and Hall’s process by explaining the Bayer’s process.
The given reaction shows one of the processes to extract the metals like Iron and Manganese.
\[\ce{MnO2(s) + Al(s) -> Mn(l) + Al2O3(s) + Heat}\]
Identify the substance oxidised and reduced in the above reaction.
