Substances A, B, and C can all act as oxidizing agents. in solution the neutral
ID: 853039 • Letter: S
Question
Substances A, B, and C can all act as oxidizing agents. in solution the neutral substance A0 is green, B0 is yellow and C0 is red. In reactions in which they participate, they are reduced to A1-, B1-, and C1- ions, all of which are colorless.
a. When a solution of A0 is mixed with one containing C1- ions, the color changes from green to red.
i. Write the net ionic equation for the reaction.
ii. Which species is oxidized? How do you know?
iii. Which species is reduced? How do you know?
b. When a solution A0 is mixed with one containing B1- ions, the color remains green.
i. Write the net ionic equation for the reaction.
ii. is A0 a better oxidizing agent than B0? How do you know?
iii. is A0 a better oxidizing agent than C0? How do you Know?
C. Arrange A0,B0, and C0 in order of increasing strength as oxidizing agents.
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Explanation / Answer
a)
i. Write the net ionic equation for the reaction.
A+ c^1- ...> A^1- + C
ii. Which species is oxidized? How do you know?
C^- oxidised to C
loss of electrons is oxidation
iii. Which species is reduced? How do you know?
A reduced A^1-
gain of electrons is reduction.
b)
i. Write the net ionic equation for the reaction.
A+B^1-.......... no reaction
ii. is A0 a better oxidizing agent than B0? How do you know?
no .if so the reaction should takes place
iii. is A0 a better oxidizing agent than C0? How do you know?
yes that is why A+ c^1- ...> A^1- + C is possible
c) C^0 < A^0 < B^0