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General Principles and processes of Isolation of Elements
medium
Match List$-I$ and List$-II :$
List$-I$ | List$-II $ | ||
$(a)$ | Haematite |
$(i)$ |
$Al _{2} O _{3} \cdot xH _{2} O$ |
$(b)$ | Bauxite | $(ii)$ |
$Fe _{2} O _{3}$ |
$(c)$ | Magnetite | $(iii)$ | $CuCO _{3} \cdot Cu ( OH )_{2}$ |
$(d)$ | Malachite | $(iv)$ | $Fe _{3} O _{4}$ |
Choose the correct answer from the options given below :
A
$(a)-(ii), (b)-(iii), (c)-(i), (d)-(iv)$
B
$(a)-(iv), (b)-(i), (c)-(ii), (d)-(iii)$
C
$(a)-(i), (b)-(iii), (c)-(ii), (d)-(iv)$
D
$(a)-(ii), (b)-(i), (c)-(iv), (d)-(iii)$
(JEE MAIN-2021)
Solution
Ore | Formula | ||
$(a)$ | Haematite |
$(i)$ |
$Fe _{2} O _{3}$ |
$(b)$ | Bauxite | $(ii)$ |
$Al _{2} O _{3} \cdot xH _{2} O$ |
$(c)$ | Magnetite | $(iii)$ | $Fe _{3} O _{4}$ |
$(d)$ | Malachite | $(iv)$ | $CuCO _{3} \cdot Cu ( OH )_{2}$ |
Standard 12
Chemistry
Similar Questions
Match Column $-I$ with Column $-II$
Column $-I$ | Column $-II$ |
$(P)$ Nitriding | $(I)$ Process of heating steel to redness and then cooling It very slowly |
$(Q)$ Annealing | $(II)$ Process of heating steel in presence of $NH_3$ and producing hard coating of Iron Nitride on the surface of steel |
$(R)$ Tempering | $(III)$ Process of heating steel to redness and then cooling it suddenly by plunging it into water or oil |
$(S)$ Quenching | $(IV)$ Process of heating quenched steel to a temperature well below redness and then cooling it slowly |
hard