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Question

Why are bases slippery and taste bitter where as acids are not slippery and taste sour?

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Solution

Bases feel soapy or slippery because they react with acidic molecules in your skin called fatty acids. In fact, this is exactly how soap is made. Mixing a base—usually sodium hydroxide—with fatty acids produces soap. So, when a base touches your skin, the combination of the base with your own fatty acids actually makes a small amount of soap.

Bases also have certain common characteristics. Mild bases in foods taste bitter and feel slippery. However tasting and touching are not safe ways of testing whether a solution is a base

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