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Which solvent is most suitable for taking out a butter stain from fabric?

1. CH3Cl
2. C2H5OH
3. C2H5OC2H5
4. H2O

Correct answer: C2H5OC2H5

Solution

Butter is a fat/grease, which dissolves best in a non-polar organic solvent. Diethyl ether (C2H5OC2H5) is the most suitable choice; water and ethanol are too polar to remove the grease.

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