Identify the statements which are not correct. a) Copper is refined by Van-Arkel method b) Zinc is refined by electrolysis method c) Zirconium is refined by distillation method

• A

  $a, b$
• B

  $a, b, c$
• Correct answer
  C

  $a, c$
• D

  $b, c$

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