would tert-pentyl alcohol give a positive or negative test on the following tests? for Jones' oxidation and Iodoform I think that it might give a negative test but I'm not sure, I'm also not sure about the other 2 tests. Help please! TestJones'Oxidation2,4-Dinitrophenyl-hydrazonesPurpaldlodoformTests forPrimary andsecondaryAlcohols,AldehydesAldehydesand Ketones29010AldehydesMethylKetones andMethylAlcoholsProcedureAdd 2 drops of the unknown to 0.5 mL of pure acetone in atest tube, and add to this solution 1 small drop of Jones'reagent (chromic acid in sulfuric acid). A positive test isformation of a green color within 5 sec upon addition of theorange-yellow reagent to a primary or secondary alcohol.Add 3 drops of the unknown to 0.5 mL of ethanol, and thenadd 0.75 mL of 2,4-dinitrophenylhydrazine reagent. Mixthoroughly and let sit for a few minutes. A yellow to redprecipitate is a positive test. Yellow derivatives are formedfrom compounds with isolated carbonyl groups and orange-red to red derivatives from aldehydes or ketones conjugatedwith double bonds or aromatic rings.Add 2 drops of your unknown to 1 mL of purpald reagent.Add one drop of 3% H₂O₂ and shake. Aldehydes develop apurple/brown color. This may take a few minutes. Ketoneswill remain colorless.Dissolve 4 drops of unknown in 2 mL of water (if watersoluble) or in 2 mL of 1,2-dimethoxyethane (if waterinsoluble). Then add 2 mL of 3M NaOH and slowly add 3 mLof the iodine solution. In a positive test the brown color ofthe reagent disappears, and the yellow iodoform separates.

The question is based on the concept of organic reactions and qualitative analysis . we need to…

would tert-pentyl alcohol give a positive or negative test on the following tests? for Jones' oxidation and Iodoform I think that it might give a negative test but I'm not sure, I'm also not sure about the other 2 tests. Help please!

would tert-pentyl alcohol give a positive or negative test on the following tests? for Jones' oxidation and Iodoform I think that it might give a negative test but I'm not sure, I'm also not sure about the other 2 tests. Help please!

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter20: Applications Of Oxidation/reduction Titrations

Section: Chapter Questions

Problem 20.17QAP

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Concept explainers

Alkanes and Cycloalkanes

Alkanes are saturated organic compounds which are made up of C and H atoms. Alkanes have the general formula of CnH2n+2. Alkane contains sp3 hybridized carbon atoms with four sigmas (σ) bonds & every hydrogen atom is connected with one of the carbon atoms. The size of the alkane could be determined by the number of carbon atoms located in it.

Question

Test
Jones'
Oxidation
2,4-
Dinitrophenyl-
hydrazones
Purpald
lodoform
Tests for
Primary and
secondary
Alcohols,
Aldehydes
Aldehydes
and Ketones
29010
Aldehydes
Methyl
Ketones and
Methyl
Alcohols
Procedure
Add 2 drops of the unknown to 0.5 mL of pure acetone in a
test tube, and add to this solution 1 small drop of Jones'
reagent (chromic acid in sulfuric acid). A positive test is
formation of a green color within 5 sec upon addition of the
orange-yellow reagent to a primary or secondary alcohol.
Add 3 drops of the unknown to 0.5 mL of ethanol, and then
add 0.75 mL of 2,4-dinitrophenylhydrazine reagent. Mix
thoroughly and let sit for a few minutes. A yellow to red
precipitate is a positive test. Yellow derivatives are formed
from compounds with isolated carbonyl groups and orange-
red to red derivatives from aldehydes or ketones conjugated
with double bonds or aromatic rings.
Add 2 drops of your unknown to 1 mL of purpald reagent.
Add one drop of 3% H₂O₂ and shake. Aldehydes develop a
purple/brown color. This may take a few minutes. Ketones
will remain colorless.
Dissolve 4 drops of unknown in 2 mL of water (if water
soluble) or in 2 mL of 1,2-dimethoxyethane (if water
insoluble). Then add 2 mL of 3M NaOH and slowly add 3 mL
of the iodine solution. In a positive test the brown color of
the reagent disappears, and the yellow iodoform separates.

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