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Date: 4-1-2017
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Date: 29-11-2019
709
Date: 23-8-2019
909
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Tertiary alcohols are not oxidized by acidified sodium or potassium dichromate(VI) solution - there is no reaction whatsoever. If you look at what is happening with primary and secondary alcohols, you will see that the oxidizing agent is removing the hydrogen from the -OH group, and a hydrogen from the carbon atom attached to the -OH. Tertiary alcohols don't have a hydrogen atom attached to that carbon.
You need to be able to remove those two particular hydrogen atoms in order to set up the carbon-oxygen double bond.
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هل يمكن للدماغ البشري التنبؤ بالمستقبل أثناء النوم؟
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علماء: طول الأيام على الأرض يزداد بسبب النواة الداخلية
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دراسة علمية لباحثين في جامعة تكريت تناقش دور المرجعية الدينية في تعزيز خطاب الاعتدال
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