An enzyme known to catalyze the cleavage of di-saccharides is added to a pure sample of an unknown carbohydrate. infrared spectroscopy on the resulting solution reveals the presence of two separate peaks between 1760 cm⁻¹ and 1665 cm⁻¹.

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Sucrose

Explanation:

These two regions and region in between 1760 cm-1 and 1665 cm-1 is carbonyl strech indicative. therefore, two different peaks indicates two type of carbonyl functional group.

and after water is usually warmed by the sun the water temperature raises and then evaporates .