mini lab 23. Nucleophilic substitution rates of alcohols. tube #1 - had 10 drops
ID: 1000960 • Letter: M
Question
mini lab 23. Nucleophilic substitution rates of alcohols.
tube #1 - had 10 drops of 1-butanol
tube #2 " " of 2-butanol
tube #3 " " of 2-mehtyl-2-propanol
tube # 4 " " of isobutanol
2.0 mL of HCL-ZnCl2 reagent was added to each test tube. my observations are below , I dont know exactly what caused the cloudiness to occur in those tubes that reacted.
What were your observations? What caused the cloudiness? tube - I no charge in coln reform . tube #a lot closure became more close at times accumult. not to town hati, tube H 32 inns wan visillas until it a much pain ut wRilers 30 , and white see on so tube # 1 shocked to turn within 5 mintExplanation / Answer
HCl and ZnCl2 are called Lucas reagent .
In test tube 1- 1 butanol is a primary alcohol so here no visible reaction occurs and solution remain colourless.
In test tube 2- 2-butanol is secondary alcohol so here solution in test tube turns cloudy in 10 to 20 minutes on slighly heating.
In test tube 3 - 2methyl 2- propanol is tertiary alcohol and it turns cloudy quickly and form two separate layers at room temperature.
In test tube 4- isobutanol is a primary alcohol so here no visible reaction occurs it remain colorless.
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