Oxidation Reduction MCQ

Test your knowledge with important Oxidation Reduction MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Oxidation Reduction MCQs at Bissoy

• Which of the following metals cannot be extracted via hydrometallurgy?
  ক

  Copper

  খ

  Zinc

  গ

  Iron

  ঘ

  Gold
• Which of the following processes involves the dissolution of the ore in a suitable reagent followed by precipitation of the metal by a more reactive metal?
  ক

  Froth floatation

  খ

  Casting

  গ

  Smelting

  ঘ

  Hydrometallurgy
• Which of the following is used to reduce the metal complexes obtained during leaching process?
  ক

  Tellurium

  খ

  Antimony

  গ

  Zinc

  ঘ

  Selenium
• What is the process used to recover the metal from its soluble complex obtained after leaching?
  ক

  Oxidation

  খ

  Reduction

  গ

  Crystallization

  ঘ

  It cannot be obtained
• Which of the following is a complex formed during the extraction of silver via leaching? – c) -2 d) -3
  ক

  AgCN

  খ

  [Ag(CN)2

  গ

  Ag(CN)2

  ঘ

  Ag(CN)2
• Which of the following is a product formed during the electrolysis of brine?
  ক

  NaCl

  খ

  NaOH

  গ

  H2O

  ঘ

  Na2O
• Leaching process is an oxidation reaction.
  ক

  True

  খ

  False
• What is the voltage at which electrolysis of brine takes place?
  ক

  < 2.2 V

  খ

  > 2.2 V

  গ

  2.2 V

  ঘ

  Brine cannot be electrolysed
• Which of the following is chlorine isolated from by oxidation?
  ক

  The atmosphere

  খ

  Brine

  গ

  Sylvite

  ঘ

  Bischofite
• Non-metals are extracted by oxidation.
  ক

  True

  খ

  False