ICSE Class 10 Chemistry Question 17 of 23

Solved Sample Paper 3 — Question 13

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Question

Question 6(i)

For each of the formula of ores given below, what is their common names and role/use.

(a) Al2O3.2H2O

(b) Na3AlF6

Answer

The common name and use of the ores are given below:

S.
No.
OreCommon NameUse
aAl2O3.2H2OBauxiteIt is the main ore from which aluminium is extracted.
bNa3AlF6CryoliteLowers the fusion temperature from 2050°C to 950°C and enhances conductivity.