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Fats and oils change their smell and taste because of
Which of the following is example of corrosion
MnO2 + 4HCl —-> MnCl2 + 2H2O + Cl2 is an example of
2Cu + O2 + Heat —————> 2CuO is a type of
The reaction in which oxidation and reduction occurs simultaneously is called
Gain of hydrogen or loss of oxygen is
Gain of oxygen or loss of hydrogen is