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CDS I 2022
Question #400
Chemistry
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Which one of the following is not an example of an oxidation reaction?
A
The taste of butter changes if left for a longer period
B
A white substance is formed when an aqueous solution of barium chloride is mixed with sodium sulphate solution
C
A reddish-brown powder gets coated on articles made of iron
D
Wine gets sour with time
Pick an option above to test your answer
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Subject:
Science & Technology
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Which one of the following is not an example of an oxidation reaction? | CDS I 2022 Solved PYQ | UPSCGPT