Electrolysis Quiz with complete solutions, Exams of Nursing

Download Electrolysis Quiz with complete solutions and more Exams Nursing in PDF only on Docsity! Electrolysis Exam Questions and Answers Electrolysis - Answer- The breakdown of a substance using electricity electrode - Answer- An unreactive rod or A metal or graphite rod by which a current enters or leaves the electrolyte. Anode - Answer- A positive electrode Cathode - Answer- A negative electrode Electrolyte - Answer- The solution which contains the dissolved compound which is decomposed Strong Electrolyte - Answer- A substance which dissociates completely into ions in dilute aqueous solutions. Weak Electrolyte - Answer- A substance which dissociates partially into ions in dilute aqueous solutions. electricity - Answer- The flow of electrons cation - Answer- The positive ions which migrate to the cathode Anion - Answer- The negative ions which migrate to the positive electrode (anode) Reduction - Answer- Gaining of electrons place of reduction - Answer- Cathode Oxidation - Answer- Losing of electrons place of oxidation - Answer- Anode Cell - Answer- A device which can convert electrical energy to chemical energy or chemical energy to electrical energy Electrochemical cells - Answer- the device which converts chemical energy to electrical energy is called the electrochemical cell Electrolytic cell - Answer- the cell which converts electrical energy to chemical energy Reducing agent - Answer- The species which help in reduction and oxidize itself by loosing electrons Oxidizing agent - Answer- The species which help in oxidation and after gaining electrons Redox reactions - Answer- The reactions in which both oxidation and reduction takes place separately are called the redox reactions What type of equations do you use to show the movement of electrons? - Answer- Half equations Metallic Conduction - Answer- 1.Current carried by electrons in metal/graphite rod. 2.Charged particles move from anode - cathode. 3. Doesn't result in a chemical change. Electrolytic Conduction - Answer- 1.Current carried by +ve & -ve ions of electrolyte. 2.Charged particles move towards both electrodes. 3.Results in a chemical change. Selective/Preferential Discharge - Answer- The electrode process which takes place most easily when 2 or more ions migrate to the same electrode. Factors Determining Which Ions Are Discharged - Answer- 1.Position of the ion in the electrochemical series. 2.Relative concentration of the ions. 3.Nature of the electrodes. Electrochemical Series (Cations) - Answer- K + Na + Ca 2+ Mg 2+ Al 3+ Zn 2+ Fe 2+ Pb 2+ H + Cu 2+ Ag + Electrochemical Series (Anions) - Answer- SO4 2- NO3 - Cl - Br -