JEE Main 202122 Jul, Evening shiftChemistryEasyIsolation of Elements99× since 2002Sulphide ion is soft base and its ores are common for metals. (a) Pb (b) Al (c) Ag (d) MgAOption A. (a) and (c) onlyBOption B. (a) and (d) onlyCOption C. (a) and (b) onlyDOption D. (c) and (d) onlyCheckSkip · show solution