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JEE Advanced levelOne or more correct optionsDifficulty 3 of 3ro257

The compound shown is treated with excess periodic acid. Select ALL correct statements.

ATwo moles of $HIO X_{4}$ are consumed per mole of the compound.
BOne mole of $HCOOH$ is formed per mole of the compound.
CTwo moles of $HCHO$ are formed per mole of the compound.
DThree moles of $HCHO$ are formed per mole of the compound.

Answer: A, B, C

The compound is glycerol. Cleavage of the first C-C bond gives

HCHO

plus glycolaldehyde,

OHC - CH X_{2} OH

; this alpha-hydroxy aldehyde is cleaved again to

HCOOH

and

HCHO

. Total: 2

HIO X_{4}

, 2

HCHO

and 1

HCOOH

. Three moles of formaldehyde would need a third cleavage, which does not occur.

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