Electrochemistry MCQs with Answers

Electrochemistry MCQs with Answers for CBSE Class 8, 9 and 10  Multiple Choice Questions and Answers (MCQs) on electrochemistry quiz answers...

Electrochemistry MCQs with Answers for CBSE Class 8, 9 and 10

 Multiple Choice Questions and Answers (MCQs) on electrochemistry quiz answers, chemistry MCQs test  for online degree courses like #SSC #UPSE. Practice "electrochemistry Oxidation and Reduction" MCQs, electrochemistry quiz questions and answers for online secondary school classes. Learn electrochemical industries, corrosion and prevention, electrochemical cells test prep for online school courses.

Q1. The process in which substance gains electrons is called

  • oxidation
  • hydrogenation
  • sublimation
  • reduction

Q2. On an industrial scale, sodium metal is prepared by electrolysis of fused

  • NaOH
  • NaCl
  • NaO
  • NH3

Q3. Corrosion can be prevented by

  • Alloying
  • Tinning
  • Galvanizing
  • all of above

Q4. The electrolyte used for tin plating is

  • sulphide ore
  • stannous sulphate
  • hydrogen sulphate
  • sodium chloride

Q5. An electrolytic cell uses electrical energy to drive

  • chemical reaction
  • physical reaction
  • no reaction
  • biochemical reaction

Q6 : Loss of hydrogen atoms by an element is called
  • hydrogenation
  • oxidation
  • reduction
  • sublimation
Q7 : The elements whose oxidation number is increased are
  • reduced
  • hydrogenated
  • oxidized
  • oxygenated
Q8 : The oxidation state of group IIIA metals is
  • -3
  • 3
  • 0
  • 1
Q9 : In a dry cell, the anode is made up of
  • zinc
  • calcium
  • sodium
  • graphite
Q10 : An electrochemical cell is also called
  • battery cell
  • galvanic cell
  • cell
  • chargeable cell
Q11 : As compare to iron, aluminum has
  • higher tendency to oxidize
  • less tendency to oxidize
  • equal tendency to oxidize
  • all of above
Q12 : Oxidation-reduction reaction involves
  • transfer of neutrons
  • transfer of protons
  • transfer of electrons
  • all of above
Q13 : Lead and Zinc metals occur naturally as
  • oxides
  • sulphite ores
  • carbon ores
  • chloride ores
Q14 : Conditions for good electroplating are
  • high current density
  • low temperature
  • high concentration of metal in electrolyte
  • all of above
Q15 : Electrochemical cells convert which of these into electrical energy?
  • mechanical energy
  • potential energy
  • kinetic energy
  • chemical energy
Q16 : The electrolyte among the following is
  • NaOH
  • urea
  • glucose
  • benzene
Q17 : The process used to deposit one metal over another metal is called
  • electrolysis
  • electroplating
  • carbon plating
  • none of above
Q18 : A physical or chemical process that occurs by itself is called
  • non spontaneous
  • self occurring process
  • spontaneous process
  • thermodynamic process
Q19 : Voltaic cells generate electricity by
  • spontaneous redox reaction
  • non spontaneous redox reaction
  • sublimation reaction
  • thermochemical reaction
Q20 : The oxidation state of any free element is always
  • 1
  • 2
  • 3
  • 0
Q21 : Galvanic cells are also named as
  • electrolytic cells
  • battery cells
  • Daniel cells
  • John cells
Q22 : When zinc is plated on steel, the anode is made up of
  • steel
  • oxygen
  • zinc
  • carbon
Q23 : Electrolysis of brine produces
  • chlorine gas
  • hydrogen gas
  • sodium hydroxide
  • all of above
Q24 : A reactant containing the element that is oxidized is called
  • reducing agent
  • oxidizing agent
  • hydrogen
  • sublime
Q25 : By losing one or two electrons the atoms of metal are
  • oxidized
  • reduced
  • hydrogenated
  • sublimated
Q26 : In chromium plating, few drops of Sulphuric acid are added to the electrolyte to prevent
  • oxidation
  • reduction
  • hydrolysis
  • sublimation
Q27 : The electrodes used in the production of sodium metal are
  • iron cathode and graphite anode
  • sodium cathode and carbon anode
  • aluminum cathode and fluoride anode
  • aluminum cathode and sodium anode
Q28 : In thermal power stations, carbon atoms undergo oxidation to form

  • CO2
  • CO
  • H2O
  • O2

Q29 : Electrolytes convert electricity in
  • solid state
  • liquid state
  • gaseous state
  • plasma state
Q30 : A concentrated aqueous solution of sodium chloride is called
  • aqueous solution
  • salt solution
  • brine
  • lemonade
Q31 : Rusting of iron occurs due to
  • reduction
  • hydrogenation
  • oxidation
  • sublimation

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Advanced Chemistry: Electrochemistry MCQs with Answers
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