the alcohol undergoes oxidation in slowest rate by K2Cr2
The oxidation of alcohols with K2Cr2O7 (potassium dichromate) is a common reaction in organic chemistry. The rate of oxidation of alcohols with K2Cr2O7 can be affected by several factors, such as the nature of the alcohol, the solvent used, and the reaction conditions.
Primary alcohols are generally more easily oxidized than secondary alcohols, and secondary alcohols are more easily oxidized than tertiary alcohols. This is because primary alcohols have a more reactive -OH group that is easier to oxidize than the -OH group in secondary and tertiary alcohols.
In terms of the rate of oxidation of different types of alcohols with K2Cr2O7, tertiary alcohols undergo oxidation at the slowest rate, followed by secondary alcohols, and primary alcohols are the most easily oxidized. This is because tertiary alcohols do not have a hydrogen atom on the carbon next to the -OH group, which is required for the oxidation to occur. Secondary alcohols have one hydrogen atom on the adjacent carbon, while primary alcohols have two, making them the most easily oxidizable.
However, it is important to note that the rate of oxidation can also depend on other factors, such as the solvent used and the reaction conditions. Additionally, different oxidizing agents may have different rates of oxidation for alcohols.