The Tolien’s test for the presence of reducing sugars (say, in a urine sample) involves treating the sample with silver ions in aqueous ammonia. The result is the formation of a silver mirror within the reaction vessel if a reducing sugar is present. Using glucose, C 6 H 12 O 6 , to illustrate this test, the oxidation-reduction reaction occurring is C 6 H 12 O 6 (aq) + 2 Ag + (aq) + 2OH – (aq) → C 6 H 12 O 7 (aq) + 2 Ag(s) + H 2 O( ℓ ) What has been oxidized, and what has been reduced? What is the oxidizing agent, and what is the reducing agent? Tolien's test. The reaction of silver ions with a sugar such as glucose produces metallic silver. (a) The set-up for the reaction. (b) The silvered test tube
The Tolien’s test for the presence of reducing sugars (say, in a urine sample) involves treating the sample with silver ions in aqueous ammonia. The result is the formation of a silver mirror within the reaction vessel if a reducing sugar is present. Using glucose, C 6 H 12 O 6 , to illustrate this test, the oxidation-reduction reaction occurring is C 6 H 12 O 6 (aq) + 2 Ag + (aq) + 2OH – (aq) → C 6 H 12 O 7 (aq) + 2 Ag(s) + H 2 O( ℓ ) What has been oxidized, and what has been reduced? What is the oxidizing agent, and what is the reducing agent? Tolien's test. The reaction of silver ions with a sugar such as glucose produces metallic silver. (a) The set-up for the reaction. (b) The silvered test tube
The Tolien’s test for the presence of reducing sugars (say, in a urine sample) involves treating the sample with silver ions in aqueous ammonia. The result is the formation of a silver mirror within the reaction vessel if a reducing sugar is present. Using glucose, C6H12O6, to illustrate this test, the oxidation-reduction reaction occurring is
C6H12O6 (aq) + 2 Ag+(aq) + 2OH–(aq) → C6H12O7(aq) + 2 Ag(s) + H2O(ℓ) What has been oxidized, and what has been reduced? What is the oxidizing agent, and what is the reducing agent?
Tolien's test. The reaction of silver ions with a sugar such as glucose produces metallic silver. (a) The set-up for the reaction. (b) The silvered test tube
Definition Definition Chemical reactions involving both oxidation and reduction processes. During a redox reaction, electron transfer takes place in such a way that one chemical compound gets reduced and the other gets oxidized.
Write the systematic name of each organic molecule:
structure
Η
OH OH
OH
OH
H
name
Draw the skeletal ("line") structure of a secondary alcohol with 5 carbon atoms, 1 oxygen atom, at least one ring, and no double or triple bonds.
Click and drag to start drawing a
structure.
: ☐
☑
⑤
Name these organic compounds:
structure
name
CH₁₂
CH3 - C
CH
-
CH2
||
CH3-
-
CH₂
CH₂
|
-
-
CH3
CH3
2-methyl-2-butene
☐
3-methyl-1-butyne
-
CH3 CH.
-
C=CH
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