Question

Which is a combustion reaction and which is not?

a) CH4 + 2 F2 → CF4 + 2 H2

b) 2 H2 + O2 → 2 H2O​

Answer 1

Answer:

b) is answer

Explanation:

Combustion reaction is reaction of any reactant with oxygen in presence of oxygen.

Answer 2

b. is correct answer because here oxygen take place....

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