NEETChemistryHydrogen
How can D 2 O be prepared from water? Mention the physical properties in which D 2 O differs from H 2 O. Give at least three reactions of D 2 O showing the exchange of hydrogen with deuterium.
Options
- ABy the Girdler sulphide process; D 2 O has a higher boiling point, higher density, and slower reaction rates;
- BBy the Girdler sulphide process; D 2 O has a lower boiling point, higher density, and slower reaction rates; D
- CBy the electrolysis of heavy water; D 2 O has a lower boiling point, higher density, and slower reaction rates
- DBy the electrolysis of light water; D 2 O has a higher boiling point, lower density, and faster reaction rates
Correct answer
B. By the Girdler sulphide process; D 2 O has a lower boiling point, higher density, and slower reaction rates; D
Step-by-step solution
Correct Option is : (B) By the Girdler sulphide process; D 2 O has a lower boiling point, higher density, and slower reaction rates; D 2 O + H 2 SO 4 → 2HDO + H 2 SO 4 , D 2 O + 2HCl → 2HDO + D 2 O, D 2 O + 2Li → 2LiOD + D 2