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Question
Which one of the following statements is incorrect with regard to ortho and para dihydrogen?
Options
They are nuclear spin isomers
Ortho isomer has zero nuclear spin whereas the para isomer has one nuclear spin
The para isomer is favoured at low temperatures
The thermal conductivity of the para isomer is 50% greater than that of the ortho isomer.
Solution
Ortho isomer has zero nuclear spin whereas the para isomer has one nuclear spin
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