When exactly of glycerol (propane-1,2,3-triol) is completely oxidized and cleaved by an excess of periodic acid (), how many moles of methanal (formaldehyde, ) are yielded as final organic products?

Question

When exactly $1 	ext{ mole}$ of glycerol (propane-1,2,3-triol) is completely oxidized and cleaved by an excess of periodic acid ($HIO_4$), how many moles of methanal (formaldehyde, $HCHO$) are yielded as final organic products?

Prashant Kotian · Accepted Answer

Correct answer: 2. The oxidative cleavage of glycerol by breaks both bonds. The two terminal primary alcohol groups () are oxidized to two moles of methanal (). The central secondary alcohol group () is doubly oxidized to one mole of methanoic acid (formic acid, ). Thus, 2 moles of methanal are produced.

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