A mixture contains 1 mol each of glycerol, open-chain glucose, ethane-1,2-diol and propane-1,3-diol. Excess $HIO X_{4}$ is added and every possible cleavage goes to completion. Using the rule that one mole of $HIO X_{4}$ cleaves one C-C bond joining two adjacent oxygenated carbons, find the total moles of $HIO X_{4}$ consumed (integer).

Numerical answer type, tolerance 0.5.

Answer: 8

Count the cleavable C-C bonds: glycerol 2, open-chain glucose 5 (six oxygenated carbons in a row), ethane-1,2-diol 1, propane-1,3-diol 0 (the OH-bearing carbons are not adjacent). Total

= 2 + 5 + 1 + 0 = 8

mol of

HIO X_{4}

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Answer: 8

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