Q14 / 75 · JEE Main 2020 (07 Jan Shift 2) · Chemistry

The refining method used when the metal and the impurities have low and high melting temperatures, respectively, is

  • Correct answer
    A
    liquation.
  • B
    vapour phase refining.
  • C
    zone refining.
  • D
    distillation.

Solution

Liquation method is used when the melting point of metal is less compare to the melting point of the associated impurity.

In liquation process, the impure metal is heated on slopy hearth of furnace, due to less melting point, metal melts first and flow down leaving impurities behind.

Hence, the correct answer is option: 'A'.

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