Inorganic Chemistry Quiz

Kat and Natalia are studying section 2.1 in inorganic chemistry. What is the learning objective they should focus on?

• To explain redox reactions through calculation of reduction potentials

• To demonstrate displacement reactions

• To understand the reactivity series of metals

• To determine the EMF of a cell

Nessa and Molly are conducting a chemistry experiment. They observe that when a more reactive metal is added to a solution containing a compound of a ______ reactive metal, the more reactive metal displaces the other metal from its compound.

• less

• equally

• more

• similarly

In a chemistry experiment, Bleona and Molly are trying to understand redox reactions. They are confused about the two half equations that make up a redox reaction. Can you help them?

• Cu2+ + 2e- -> Cu and Zn -> Zn2+ + 2e-

• Zn(s) + CuSO4(aq) -> ZnSO4(aq) + Cu(s)

• Cu2+ + 2e- -> Cu and Zn(s) + Cu2+(aq) -> Zn2+(aq) + Cu(s)

• Zn -> Zn2+ + 2e- and Cu2++ 2e- -> Cu

Kat and Natalia are working on a science project involving a metal/metal ion displacement reaction. They observed that the electrons flow from ______ to ______. Can you help them identify the correct flow?

• copper to zinc

• zinc to copper

• copper to hydrogen

• zinc to hydrogen

Bleona and Molly are working on a science project involving a metal/metal ion displacement reaction. They measure the voltage reading during the experiment. What does this reading tell them?

• The potential difference between the two metals they are using

• The concentration of hydrogen ions in their solution

• The equilibrium constant of the reaction they are observing

• The rate at which their reaction is proceeding

Natalia and Nessa are working on a science project. They need to know what is the maximum possible voltage they can achieve in any situation. What is this called?

• Electromotive force

• Standard electrode potential

• Reduction potential

• Oxidation potential

During a science experiment, Max and Nessa were studying about electrochemical cells. They learned that under standard conditions, the emf of a cell is given a specific symbol. Can you tell what that symbol is?

• E θcell

• Ecell

• Eθreduction reaction

• Eθoxidation reaction

Lameesah, Molly, Max, Rose, and Bleona are studying for their chemistry exam. They are discussing the reactivity series of metals. Which of the following statements made by them is true?

• Max says, 'The bigger the difference between the half cells, the bigger the EMF.'

• Rose says, 'The most positive E𝜽 values are placed at the top of the electrochemical series.'

• Molly says, 'A highly negative Eθcell will be a strong oxidising agent.'

• Bleona says, 'Standard reduction potentials are measured at STP.'

Max and Lameesah are studying redox reactions in their chemistry class. They come across a reaction with a positive Ecell value. What does this indicate about the reaction?

• Both half cell reactions go forward

• The reaction is not feasible

• The reaction is kinetically stable

• The reverse changes occur

Nessa and Lameesah are working on a chemistry project. They need to find out which species will oxidise iron(ii) to iron(iii) in aqueous solution. Can you help them?

• Fe3+ (aq)

• Iodine (I2)

• Chlorine (Cl2)

• Copper(ii) ions (Cu2+)