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Is it true da...

Question

Is it true dat all combination reactions and displacement reactions are redox reactions while all decomposition reactions are not redox??

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Solution

No, it is not true. There are many reactions which are not combination or displacement reaction but are redox reaction.
The condition to decide a reaction is redox or not depends that both oxidation and reduction are occurring in a reaction or not. For redox reaction, there must be reduction and oxidation occurring simultaneously in a reaction.

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