K3M 2012 Problem 6
Chemistry
Level
1
Which of the following conversions is an example of reduction?
Chlorine gas to chloride ion.
Magnesium to magnesium ion.
Iron (II) ion to iron (III) ion.
Hydrogen sulphide to sulphur.
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1 solution
Reduction refers to the gain of electrons and out of the options only conversion of chlorine gas into chloride ion shows gain of electrons.