A silver spoon becomes tarnished over time according to the following reaction - HSC - SSCE Chemistry - Question 15 - 2018 - Paper 1
Question 15
A silver spoon becomes tarnished over time according to the following reaction.
$$4Ag(s) + O_2(g) + 2H_2S(g) \rightarrow 2Ag_2S(s) + 2H_2O(l)$$
Which row of the ta... show full transcript
Worked Solution & Example Answer:A silver spoon becomes tarnished over time according to the following reaction - HSC - SSCE Chemistry - Question 15 - 2018 - Paper 1
Step 1
Type of reaction of silver
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Answer
The process involves the oxidation of silver, where silver ions (Ag) are oxidized.
Step 2
Change in oxidation state
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Answer
The oxidation state of silver changes from 0 (in the elemental state) to +1, indicating that silver is oxidized.
Step 3
Conclusion
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Answer
Thus, the correct answer is D, where silver is reduced, changing from +4 to +2.
