Which of the following reactions of methane is incomplete combustion:
(i) 2CH4 + O2 
2CH3OH
(ii) CH4 + O2
HCHO + H2O
(iii) CH4 + O2 → C (s) + 2H2O (l)
(iv) CH4 + O2 → CO2 (g) + 2H2O (l)
Which of the following reactions of methane is incomplete combustion:
(i) 2CH4 + O2 2CH3OH
(ii) CH4 + O2 HCHO + H2O
(iii) CH4 + O2 → C (s) + 2H2O (l)
(iv) CH4 + O2 → CO2 (g) + 2H2O (l)
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1 Answer
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This is a multiple choice answer as classified in NCERT Exemplar
(iii) As the unburn carbon left out in this reaction thus it is an incomplete reaction
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