Which of the following is not an example of a non-ideal solution showing negative deviation?

Which of the following is not an example of a non-ideal solution showing negative deviation? Correct Answer Carbon tetrachloride + Toluene

HNO3 + Water, HCl + Water and Acetic acid + Pyridine are non-ideal solutions showing negative deviations. Carbon tetrachloride + Toluene is an example of non-ideal solution showing positive deviation.
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Which of the following is an example of a non-ideal solution showing positive deviation?
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