General Science Chemistry Organic Chemistry

ರೆಡಾಕ್ಸ್ ಕ್ರಿಯೆಯನ್ನು ಗುರುತಿಸಿ.

1
2Pb(NO3)2(s) - → - Heat 2PbO(s) + 4NO2(g) + O2(g)
2
CaCO3(s) - → - Heat CaO(s) + CO2(g)
3
MnO2 + 4HCl → MnCl2 + 2H2O + Cl2
4
Pb(s) + CuCl2(aq) → PbCl2(aq) + Cu(s)

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