Question
Match column A and column B and choose the right code :
Column AColumn B
1. $Cr _2 O _{7( aq )}^{2-} \longrightarrow Cr _{( aq )}^{+3}$(a) Reduction
2. $2 Br _{2(l)} \longrightarrow 4 Br _{( aq )}^{-}$(b) Oxidation
3. $CuSO _4$(c) Reduction
4. $Na _2 S_2 O _3$(d) Reducing agent

Answer

(1) (c), (2) (a), (3) (b), (4) (d).

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