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JEE Main levelSingle correct optionDifficulty 2 of 3ro193

Erythritol, , reacts completely with excess . Which row correctly gives the moles of consumed, and the products per mole?

  1. A2 mol HIO4; 2 mol HCHO and 1 mol HCOOH
  2. B4 mol HIO4; 2 mol HCHO and 2 mol HCOOH
  3. C3 mol HIO4; 3 mol HCHO and 1 mol HCOOH
  4. D3 mol HIO4; 2 mol HCHO and 2 mol HCOOH

Answer: D

Four carbons give three C-C bonds, all between oxygen-bearing carbons, so three moles of HIO4 are used. The two terminal CH2OH carbons give two HCHO, and the two internal CHOH carbons become two HCOOH.
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