Name the following metals:
A metal present in cryolite other than sodium.

Q. The non-metallic element present in the mineral cryolite is:

Q. (a) Give the chemical name and formula of 'cryolite'.
(b) What is the function of cryolite in the extraction of aluminium, other than acting as a solvent for bauxite?

Q. Name the metals present in the following alloys:
Brass

Q.

Select the metal present in sodium hydroxide from the following:

Q. Name the main metal present in the following:
Chalk