NEET Chemistry MCQ: NCERT Heavy Water | NEET.Guide Questions

A scientist is studying the kinetic isotope effect in a reaction involving deuterium. They find that the rate constant for the reaction with heavy water ( $D_2O$ ) is significantly smaller than that with normal water ( $H_2O$ ). This difference is primarily attributed to the:

A

Higher viscosity of $D_2O$ compared to $H_2O$ .

B

Difference in zero-point vibrational energies of the O-H and O-D bonds.

C

Greater dielectric constant of $D_2O$ compared to $H_2O$ .

D

Difference in the nuclear spins of deuterium and hydrogen.

Question Tags

📚 Subject:Chemistry

📑 Chapter:Hydrogen

🎯Topic:Heavy Water

🎓 Ncert Level:Analyzing

🎯Difficulty :Hard

⚡ Time Required :3 mins

🔄Ncert Concepts :Heavy Water, Kinetic Isotope Effect, Zero-Point Energy, Reaction Rates

Related Questions

A scientist is studying the kinetic isotope effect in a reaction involving deuterium. They find that the rate constant for the reaction with heavy water ( $D_2O$ ) is significantly smaller than that with normal water ( $H_2O$ ). This difference is primarily attributed to the:

A

Higher viscosity of $D_2O$ compared to $H_2O$ .

B

Difference in zero-point vibrational energies of the O-H and O-D bonds.

C

Greater dielectric constant of $D_2O$ compared to $H_2O$ .

D

Difference in the nuclear spins of deuterium and hydrogen.

Question Tags

📚 Subject:Chemistry

📑 Chapter:Hydrogen

🎯Topic:Heavy Water

🎓 Ncert Level:Analyzing

🎯Difficulty :Hard

⚡ Time Required :3 mins

🔄Ncert Concepts :Heavy Water, Kinetic Isotope Effect, Zero-Point Energy, Reaction Rates

In the electrolysis of a mixture of ordinary water and heavy water, which gas evolves preferentially at the cathode?

A

H2

B

D2

C

HD

D

O2

Question Tags

📚 Subject:Chemistry

📑 Chapter:Hydrogen

🎯Topic:Heavy Water

🎓 Ncert Level:Application

🎯Difficulty :Hard

⚡ Time Required :1 mins

🔄Ncert Concepts :Heavy water, Electrolysis, Kinetic isotope effect

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