Question

Which statements is not correct for ortho and para hydrogen?

• A. They have different boiling points
• B. Ortho-form is more stable than para-form
• C. They differ in their nuclear spin
• D. The ratio of ortho to para hydrogen changes with change in temperature

Answer 1

Answer: (B)

Ortho-form is more stable than para-form

Statement (B) is not correct for ortho and para hydrogen.
Ortho form is more stable than para form at and above room temperature, whereas at low temperature para form is more stable.