General Principles and processes of Isolation of Elements
hard

Match List$-I$ With List$-II :$ (Both having metallurgical terms)

List$-I$ List$-II$
$(A)$ Concentration of Ag Ore $(i)$ Reverberatory furance
$(B)$ Blast furnace $(ii)$ Pig iron
$(C)$ Blister copper $(iii)$ Leaching with dilute $\mathrm{NaCN}$ solution
$(D)$ Froth floatation method $(iv)$ Sulfide ores

Choose the correct answer from the options given below :

A

$(a)-(i v),(b)-(i i i),(c)-(i i),(d)-(i)$

B

$(a) - (iv), (b) - (i), (c) - (iii), (d) - (ii)$

C

$(a) - (iii), (b) - (iv), (c) - (i), (d) - (ii)$

D

$(a) - (iii), (b) - (ii), (c) - (i), (d) - (iv)$

(JEE MAIN-2021)

Solution

$(a)$ Concentration of $\mathrm{Ag}$ is performed by leaching with dilute $\mathrm{NaCN}$ solution

$(b)$ Pig iron is formed in blast furnace

$(c)$ Blister Cu is produced in Bessemer converter

$(d)$ Froth floatation method is used for sulphide ores.

Note : During extraction of $Cu$ reverberatory furnace is involved.

Standard 12
Chemistry

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