Question

Corundum is 

Solution

Correct option is

Al2O3

Corundum (Al2O3) is the combined state of aluminium.

SIMILAR QUESTIONS

Q1

Consider  (CuO) = –129.7 kJ mol–1 kJ mol –1and  The better reducing agent for the reduction of CuO is

Q2

In which of the following isolations no reducting agent is required?

Q3

Which of the following pairs of oxides cannot be reduced by carbon to give the respective metals?   

Q4

Titanium containing mineral found in our country is 

Q5

Ore pitch blende is main source of 

Q6

Metal which can be extracted from all the three dolomite, magnesite and carnallite is

Q7

Chile salt petre is an ore of  

Q8

Which of the following ore is used for industrial extraction of aluminium in India?  

Q9

Which is not a mineral of aluminium?

Q10

Which one is an ore of sodium?