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JEE Main 202126 FebruaryMorning Shift
Exam
JEE Main
Year
2021
Date
26 February
Shift
Morning Shift
Subject
Chemistry
Chapter
Hydrogen

JEE Main 2021 · 26 February · Morning Shift · Chemistry · Hydrogen

Statements about heavy water are given below. A. Heavy water is...

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 H2O{H}_{2}O is greater than D2O{D}_{2}O.

Choose the most appropriate answer from the options given below:

Options

  1. AAA and CC only
  2. BA,BA, B and CC only
  3. CAA and BB only
  4. DAA and DD only

Correct answer

B. A,BA, B and CC 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.B . P . of D2O=374.4K{D}_{2}O = 374 . 4K

B.P.B . P . of H2O=373K{H}_{2}O = 373K

Viscosity of H2O=0.89{H}_{2}O = 0 . 89 centipoise

Viscosity of D2O=1.107{D}_{2}O = 1 . 107 centipoise

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