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JEE Main202126 Feb 2021Morning ShiftChemistryHydrogenActual

Statements about heavy water are given below. A. Heavy water is used in exchange reactions for the study of reaction mechanisms. B. Heavy water is prepared by exhaustive electrolysis of water. C. Heavy water has higher boiling point than ordinary water. D. Viscosity of H 2 O is greater than D 2 O . Choose the most appropriate answer from the options given below:

Options

  1. AA and C only
  2. BA , B and C only
  3. CA and B only
  4. DA and D only

Correct answer

B. A , B and C only

Step-by-step solution

Heavy water is used in exchange reactions for study of reaction mechanisms Heavy water is prepared by exhaustive electrolysis of water. B . P . of D 2 O = 374 . 4   K B . P . of H 2 O = 373   K Viscosity of H 2 O = 0 . 89 centipoise Viscosity of D 2 O = 1 . 107 centipoise

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