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      Question

      Impervious nature of cork for water is due to deposition

      of which chemical?
      A Lignin Correct Answer Incorrect Answer
      B Suberin Correct Answer Incorrect Answer
      C Pectin Correct Answer Incorrect Answer
      D Hemicellulose Correct Answer Incorrect Answer

      Solution

      β€’ Cork (outer bark of trees) is water-resistant due to the presence of suberin, a hydrophobic (water-repelling) substance. β€’ Lignin provides rigidity but does not make cork water-resistant. β€’ Pectin and Hemicellulose are part of the plant cell wall but do not contribute to water resistance.

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