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4.1.2 Monosaccharides. In general all monosaccharides are soluble in water, sparingly soluble in ethanol and insoluble in ether, are optically active, possess reducing properties (ie. reduce Fehling's solution), can be represented by the general formula C x H 2x O x, and generally possess a sweet taste.
Chiral Stereoisomers. The cis/trans or E / Z isomers formed by alkenes aren't the only example of stereoisomers. To understand the second example of stereoisomers, it might be useful to start by considering a pair of hands.For all practical purposes, they contain the same substituents four fingers and one thumb on each hand.ne enantiomer of these chiral compounds is dextrorotatory; the other is levorotatory. To decide whether a compound should be optically active, we look for evidence that the molecules are chiral. The instrument with which optically active compounds are studied is a polarimeter, shown in the figure below.