Question

(4) state whether the following elements have been oxidised
or reduced giving reasoning in each case on the basis of
loss or gain of electrons:1 iron: ferrous sulphate is converted to ferric sulphate.
2 chlorine: the reaction of chlorine gas with sodium


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Answer 1

1. oxidised, loss of electrons

2. reduced, gain of electrons

1. ferrous valency is +2 and ferric's is +3 so that means one more electron has been removed, thuss loss

2. chlorine has 7 electrons in outermost shell so it takes one electron from sodium which has only one so it readily gives its electron so chlorine takes it, thus gain of electrons so its reduction