Question

In the reaction xHI + yHNO3$\longrightarrow$ NO + I2 + H2O, upon balancing with whole number coefficients :

the correct whole number stoichiometric coefficients of MnO4–, C2O42– and H+ are respectively:

• A. 2, 5, 16
• B. 16, 5, 2
• C. 5, 16, 2
• D. 2, 16, 5

Answer 1

Answer: (C)

5, 16, 2

Answer 2

(3)

Valency factor ratio is inversely related to molar ratio.

(V.f.)HI : (V.f.)HNO3 = 1 : 3 = 2 : 6 $\therefore$ Molar ratio = 6 : 2