Which of the following equations is incorrectly written?

CHEMISTRY · Single correct · CBSE · Chemistry · Redox Reactions · Redox Reactions

Problem

Which of the following equations is incorrectly written? (1) P4+20HNO3⟶4H3PO4+20NO2+4H2O\mathrm{P_4}+20\mathrm{HNO_3}\longrightarrow4\mathrm{H_3PO_4}+20\mathrm{NO_2}+4\mathrm{H_2O} (2) I2+10HNO3⟶2HIO4+10NO2+4H2O\mathrm{I_2}+10\mathrm{HNO_3}\longrightarrow2\mathrm{HIO_4}+10\mathrm{NO_2}+4\mathrm{H_2O} (3) S+6HNO3⟶H2SO4+6NO2+2H2O\mathrm{S}+6\mathrm{HNO_3}\longrightarrow\mathrm{H_2SO_4}+6\mathrm{NO_2}+2\mathrm{H_2O} (4) None of the above

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