Two common qualitative tests for unsaturation are the reaction of the compounds with bromine in carbon tetrachloride and with potassium permanganate. In both cases a positive test is denoted by decolorization of the reagent.wo common qualitative tests for unsaturation are the reaction of the compounds with bromine in carbon tetrachloride and with potassium permanganate. In both cases a positive test is denoted by decolorization of the reagent.
On this day in 1917, the text of the so-called Zimmermann Telegram, a message from the German foreign secretary, Arthur Zimmermann, to the German ambassador to Mexico proposing a Mexican-German alliance in the case of war between the United States and Germany, is published on the front pages of newspapers across America.
Germany sent a coded message (aka Zimmerman Telegram) to Mexico proposing an alliance between Germany and Mexico. Germany suggested Mexico reclaim it's former territory by goiâ¦ng to war with the United States, thus distracting them from the World War. President of the United States Woodrow Wilson got his hands on this telegram and joined the Triple Entente in the war weeks later.