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The given setup can be used for distillation.
Obtaining pure water from seawater is possible through distillation. (True)
Obtaining propane from diesel oil requires cracking, which is not supported. (False)
Obtaining oxygen from liquefied air requires fractional distillation, which is not supported. (False)
Correct Answer: A (1) only
Distillation is used to separate substances based on boiling points.
Cracking breaks down large hydrocarbons into smaller ones and requires specific conditions.
Fractional distillation is needed to separate gases like oxygen from liquefied air.
Distillation works for purifying water but not for complex separations like cracking or fractional distillation.