Question
Identify from the following reactions the reactants that undergo oxidation and reduction.
$2 Mg + O _2 \rightarrow 2 MgO$
$2 Mg + O _2 \rightarrow 2 MgO$
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| Evidences of evolution | Examples |
| (1) Palaeontological evidences | (a) Duck billed Platypus and Peripatus |
| (2) Connecting links | (b) Remnants and impressions |
| (c) Coccyx and wisdom tooth | |
| (d) Human hand and fore limb of cat |