Chemistry, asked by xyz4395, 8 months ago

In which reaction there is a change in valency. a)2No2 = N2O4 b) 2NO2 + H2O=HNO2+HNO3 c) NH4OH= NH4+ + OH- d)CaCo3= CaO+CO2​

Answers

Answered by anjana181433
2

Answer:

b) 2NO2+ HNO2+ HNO3

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