Which of the following is not correctly matched?

Red bauxite contains the impurities of iron oxides, titanium oxide and silica which are removed by Baeyer’s and Half’s processes. The Serpeck’s method is used when bauxite contains only the impurity of silica. Comprehension Amongst the various ores of a metal (M) (sulphide, carbonates, oxides, hydrated or hydroxides) two ores [X] and [Y] show the following reactivity. (i) [X] on calcination gives a black solid (S), carbon dioxide and water. (ii) [X] Dissolved in dilute HCl, on reaction with Kl gives a white precipitate (P) and iodine. (iii) [Y] on roasting gives metal (M) and a gas (G1) which