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When potassium is allowed to burn in a gas jar of chlorine, in a fume cupboard, clouds of white smoke are produced. what does the white smoke consist of?



When potassium is heated in an iron deflagrating spoon until it ignites and then lowered in dry jars of oxygen, it burns with bright lilac flame forming orange-yellow solid higher oxides (e.g. potassium peroxide, K2O2, and potassium dioxide, KO2). 2 K + O2 ==> K2O2 Potassium Peroxide K + O2 ==> KO2 Potassium Dioxide When these substances are dissolved in water, oxygen is evolved and an alkaline solutions, containing potassium hydroxide, which turn red litmus blue is formed.> 2 K2O2 + 4 H2O ==> 4 KOH + O2 Potassium Potassium Peroxide Hydroxide 4 KO2 + 2H2O ==> 4 KOH + 3 O2 Potassium Potassium Dioxide Hydroxide
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