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Ortho hydrogen (o-H2) and para hydrogen ...

Ortho hydrogen `(o-H_2) `and para hydrogen `(p-H_2)` have different energy contents and are related by the equilibrium relation.
` o. H_2 hArr p.H_2 +0.09kJ`
`o-H_2 and p-H_2 ` differ in which of the following properties?

A

Spin of nucleus.

B

Nuclear magnetic moment.

C

Boiling point.

D

All of these.

Text Solution

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The correct Answer is:
A
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Knowledge Check

  • Ortho hydrogen (o-H_2) and para hydrogen (p-H_2) have different energy contents and are related by the equilibrium relation. o. H_2 hArr p.H_2 +0.09kJ Choose the incorrect statement.

    A
    Ortho hydrogen has protons of parallel spin
    B
    Ortho hydrogen is adsorbed more readily than para hydrogen by metal surface.
    C
    Both (A) and (B) are correct.
    D
    Neither (A) nor (B) is correct.

  • Ortho hydrogen (o-H_2) and para hydrogen (p-H_2) have different energy contents and are related by the equilibrium relation. o. H_2 hArr p.H_2 +0.09kJ Which of the following statement is correct?

    A
    The percentage of `o-H_2` decreases with increase in temperature
    B
    The percentage of `p-H_2` increases with decrease in temperature.
    C
    At absolute zero Kelvin, the percentage of `o-H_2` is maximum
    D
    At room temperature `D_2` cannot show `o-D_2 hArr p-D_2` equilibrium.

  • Para and ortho H_(2) differ in

    A
    atomic number
    B
    atomic mass
    C
    spins of protons
    D
    number of neutrons

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    For a physical equilibrium H_2O(s)hArr H_2O(l) which of the following is true?

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