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What is a spot test for alcohol?


Question asked by: knowitall
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A spot test is an easy to do test that be done on the spot, hence the name.

A typical spot test for alcohol could be:

Use chromic anhydride in a solution of sulphuric acid.

This starts off as green in colour, but turns orange in the presence of alcohol; this is due to the change in state of oxidation of the chrome in the presence of alcohols.

Note that the anhydride is not a pleasant substance and is poisonous and carcinogenic.

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alcohol  test  spot  

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