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General Principles and processes of Isolation of Elements
medium
Sulphide ion is soft base and its ores are common for metals.
$(a)$ ${Pb}$ $(b)$ ${Al}$ $(c)$ ${Ag}$ $(d)$ ${Mg}$
Choose the correct answer from the options given below :
A
$(a)$ and $(c)$ only
B
$(a)$ and $(b)$ only
C
$(a)$ and $(d)$ only
D
$(c)$ and $(d)$ only
(JEE MAIN-2021)
Solution
$\mathrm{Pb}$ and $Ag$ commonly exist in the form of sulphide ore like $PbS$ (galena) and $\mathrm{Ag}_{2} \mathrm{~S}$ (Argentite). $'Al'$ is mainly found in the form of oxide ore whereas $'Mg'$ is found in the form of halide ore.
Standard 12
Chemistry
Similar Questions
Match List $I$ with List $II$.
| List $I$ | List $II$ |
| $A$ Reverberatory furnace | $I$ Pig Iron |
| $B$ Electrolytic cell | $II$ Aluminum |
| $C$ Blast furnace | $III$ Silicon |
| $D$ Zone Refining furnace | $IV$ Copper |
