Chemistry
Grade-10
Easy
Question
Which of the following is NOT a redox reaction?
- Displacement
- Decomposition
- Synthesis
- Neutralization
Hint:
The term ‘redox’ is a short form of reduction-oxidation.
The correct answer is: Neutralization
Redox reactions are oxidation-reduction chemical reactions in which the reactants undergo a change in their oxidation states. The term ‘redox’ is a short form of reduction-oxidation. One element of the reactant undergoes oxidation and another reduction.
A neutralization reaction is an acid base reaction producing salt and water.
NaOH + HCl 
NaCl + H2O
Oxidation state of Na in reactant and product is +1 and oxidation state of hydrogen in both reactant and product is +1. This is NOT a redox reaction.
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