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General Principles and processes of Isolation of Elements
easy
In zone - refining method the molten zone
A
consists of impurities only
B
contains more impurity than the original metal
C
contains the purified metal only
D
moves to either side
Solution
Zone-refining process is a group of similar methods of purifying crystals, in which a narrow region of a crystal is melted, and this molten zone is moved along the crystal. The molten region melts impure solid at its forward edge and leaves a wake of purer material solidified behind it as it moves through the ingot. It typically contains more impurity than the original metal.
Standard 12
Chemistry
Similar Questions
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 :
