16 Ethyne gas may be tested for saturation in the laboratory. Which of these is a positive test?
It changes the colour of cobalt chloride paper from blue to pink
It changes the colour of bromine water from red to blue
It turns lime water milky
It decolorizes acidified potassium permanganate solution.
17 Which molecule contains a total of three carbon atoms?
2-methyl propane
2-methyl butane
Propane
Butane
18 Breaking of a larger hydrocarbon molecule into a smaller one by heating in the presence of a catalyst is called ___.
Cracking
Orthofugation
Centrifugation
Thermogenation
1
Expert's answer
2016-08-23T07:26:52-0400
Question: 16 Ethyne gas may be tested for saturation in the laboratory. Which of these is a positive test? It changes the colour of cobalt chloride paper from blue to pink It changes the colour of bromine water from red to blue It turns lime water milky It decolorizes acidified potassium permanganate solution. 17 Which molecule contains a total of three carbon atoms? 2-methyl propane 2-methyl butane Propane Butane 18 Breaking of a larger hydrocarbon molecule into a smaller one by heating in the presence of a catalyst is called ___. Cracking Orthofugation Centrifugation Thermogenation
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