NCERT Problem 7.7 - Redox Reactions
Question: Give substances in which carbon ranges from -4 to +4 and nitrogen ranges from -3 to +5 in oxidation number.
Answer: C: CH4 (-4), CH3OH (-2), HCHO (0), HCOOH (+2), CO2 (+4). N: NH3 (-3), N2 (0), NO (+2), NO2 (+4), HNO3 (+5).
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