Malachite is an ore of
Calcium
Magnesium
Copper
Malachite is CuCO3 Cu(OH)2
Write the chemical formulae of the following:
(a) Magnesium chloride
(b) Calcium oxide
(c) Copper nitrate
(d) Aluminium chloride
(e) Calcium carbonate
Which of the following ore contains both magnesium and calcium
Which among the following is the most reactive metal ?
(a) copper
(b) calcium
(c) iron
(d) magnesium