Which of the following would, in the gas phase, display the greatest deviations from ideal gas behavior?
A
C2H2
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B
HCl
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C
BrCl
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D
Se2
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Solution
The correct option is AHCl As HCl is having more ionic character (more attraction). HCl will show more deviation from ideal behavior. An ideal gas is one which is having negligible intermolecular forces of interaction (it can be either attraction or repulsion).