What is the difference between Tollens reagent and other oxidizing agents? What is its importance? Write the balanced equation of the sample that gave positive test for Tollens test.

Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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 What is the difference between Tollens reagent and other oxidizing agents? What is
its importance? Write the balanced equation of the sample that gave positive test for
Tollens test.

Part 1. Instruction: Fill up the table and research the following tests for alcohols:
Test
Test for
Positive Result
Negative Result
Orange Solution
Jones
Tollens
Iodoform
2,4-DNPH
Formaldehyde
Benzaldehyde
Acetone
Aldehydes
Aldehydes and
ketones
Methyl ketones
Aldehydes and
Ketones
Blank
(+)
(+)
(-)
Blue/green
Part 2. Write "+" for positive result and "-" for negative result.
Iodoform
Sample
Jones Test Tollens Test
Test
(-)
solution aldehydes
formation of silver
mirror (aldehyde)
Cloudy yellow solution
(methyl ketone)
non-conjugated
Orange ppt (carbonyls)
red ppt (conjugated
carbonyls)
(+)
(+)
(+)
(-)
(-)
Clear solution
(+)
clear, yellow or orange
Solution w/o ppt
yellow solution
w/o ppt
2,4-DNPH Test
(+)
arcurge precipitation
(†)
red precipitation
(+)
orange precipitation
(-)
Transcribed Image Text:Part 1. Instruction: Fill up the table and research the following tests for alcohols: Test Test for Positive Result Negative Result Orange Solution Jones Tollens Iodoform 2,4-DNPH Formaldehyde Benzaldehyde Acetone Aldehydes Aldehydes and ketones Methyl ketones Aldehydes and Ketones Blank (+) (+) (-) Blue/green Part 2. Write "+" for positive result and "-" for negative result. Iodoform Sample Jones Test Tollens Test Test (-) solution aldehydes formation of silver mirror (aldehyde) Cloudy yellow solution (methyl ketone) non-conjugated Orange ppt (carbonyls) red ppt (conjugated carbonyls) (+) (+) (+) (-) (-) Clear solution (+) clear, yellow or orange Solution w/o ppt yellow solution w/o ppt 2,4-DNPH Test (+) arcurge precipitation (†) red precipitation (+) orange precipitation (-)
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