A test for primary or secondary alcohols is oxidation with chromate (CrO4^-2). The chromate solution is orange and changes to green when the reduced Cr^+3 is formed. Indicate if a color change would occure with each alcohol.
1-propanol
isopropyl alcohol
1-heptanol
cyclopentanol
1-propanol
isopropyl alcohol
1-heptanol
cyclopentanol
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I presume you are asking if all the above are primary or secondary alcohols. They are. Just count how many carbons are attached to the alpha carbon. Alpha carbon being the one attached to the OH group.
So all of them should have color changes occur.
So all of them should have color changes occur.
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In a primary alcohol, the carbon with the alcohol group is bonded to one other carbon. In a secondary alcohol, the carbon with the alcohol group is bonded to two other carbons. You can also have a tertiary alcohol, with the carbon with the alcohol group bonded to three other carbons. 1-propanol and 1-heptanol are primary alcohols, while isoproply alcohol and cyclopentanol are secondary alcohols. Each of them will give a color change with the chromate solution.