JEE Advanced levelNumerical answerDifficulty 3 of 3rx045
Find the sum of the INDIVIDUAL oxidation numbers of all sulfur atoms in one formula unit of HX2SX2OX8 (one O-O bond) plus all sulfur atoms in the SX4OX6X2− ion (OX3S−S−S−SOX3). Give an integer.
Numerical answer type, tolerance 0.01.
Answer: 22
In HX2SX2OX8, each S is +6, sum 12. In SX4OX6X2−, terminal S are +5 and inner S are 0, sum 10. Total =12+10=22.