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JEE Main levelOne or more correct optionsDifficulty 2 of 3el132

Select the correct statements about traditional preservation methods.

  1. AA high concentration of salt dehydrates microorganisms by osmosis.
  2. BSugar syrup is used to preserve jams and squashes.
  3. CSodium chloride preserves food by acting as an antioxidant.
  4. DA layer of vegetable oil protects pickles by excluding air.

Answer: A, B, D

Salt and sugar act osmotically, and oil excludes air, so statements 1, 2 and 4 are true. Salt is not an antioxidant, so statement 3 is false.
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