Alcohol and water have different boiling points. which method would you use to separate them

Distillation.

Explanation:

Distillation is the separation technique which can be used for separation of any two liquids of different boiling points.

The boiling point of water is near 100 degree celsius while that of alcohol is less than it.

So if we separate them with distillation, then alcohol will separate out first.

If two liquids have close boiling points then we can use fractional distillation.

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c is having 4 valence electrons and is bonded to three hydrogens and one sulphur atom, therefore, the number of bond pair is equal to four. as all the valence electrons are used in forming the bonds so, there is no lone pair left on carbon.

s is having 6 valence electrons and is bonded to one other sulfur atom and one carbon atom, therefore, the number of bond pair is equal to 2. as only two valence electrons are used in forming the bonds so, four electrons are left. therefore, two lone pairs are present on s.