Redox reactions (Q5) - ECS
Assessment
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Fung Kei
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Chemistry
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10th Grade
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6 plays
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Medium
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5 questions
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1.
Multiple Choice
Which of the following statements concerning the Electrochemical Series (E.C.S.) is/are correct?
(1) A metal higher in the Electrochemical Series is a stronger reducing agent and its ion is a weaker oxidizing agent.
(2) A metal and its ion are linked together by using a half-equation written in the form of oxidation.
(3) Oxidizing agents are listed on the Left-Hand Side (LHS) of the E.C.S. while the reducing agents are on the Right-Hand Side (RHS).
(1) only
(2) only
(1) and (3) only
(2) and (3) only
2.
Multiple Choice
Which of the following statements concerning the species (O.A. & R.A.) in the E.C.S. is INCORRECT ?
Fe2+(aq) can be found on both LHS and RHS of the E.C.S.
The position of H+(aq) is higher than that of Cu2+(aq) in the E.C.S.
The position of H2(g) is higher than that of Cu(s) in the E.C.S.
The position of Cl2(g) is higher than that of Br2(aq) in the E.C.S.
3.
Multiple Choice
Strontium (Sr) is a Group II metal. Strontium has a larger relative atomic mass than calcium. Which of the following statements about strontium is correct ?
Strontium is an unreactive metal.
Strontium is a stronger reducing agent than calcium.
The formula of the chloride of strontium is SrCl.
Strontium reacts less vigorously with water than calcium.
4.
Multiple Choice
The position of Fe3+(aq) is below I2(aq) but above Br2(aq) in the E.C.S. Which of the following substances can reduce Fe3+(aq) to Fe2+(aq)?
I-(aq)
I2(aq)
Br-(aq)
Br2(aq)
5.
Multiple Choice
The following shows the ascending order of reducing power of six substances:
Ag < Cu < H2 < Cr < Mn < Na < Ba
Which of the following statements is INCORRECT?
Ag(s) does not react with Ba2+(aq).
Chromium reacts with hydrochloric acid.
Silver ion is the strongest oxidizing agent.
Copper can displace manganese from manganese(II) nitrate solution.
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