A sample of a saccharide turns dark blue when subjected to the starch iodine test. What does this result indicate about the saccharide? O the saccharide must be glucose O the saccharide must be a monosaccharide the saccharide must contain starch O more information is required

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
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
icon
Related questions
icon
Concept explainers
Question
**Starch-Iodine Test and Saccharide Identification**

A sample of a saccharide turns dark blue when subjected to the starch iodine test. What does this result indicate about the saccharide?

- The saccharide must be glucose
- The saccharide must be a monosaccharide
- The saccharide must contain starch
- More information is required

**Explanation:**

The starch iodine test is used to identify the presence of starch in a sample. When iodine solution is added to a sample containing starch, it binds to the amylose component of starch, producing a dark blue color. Therefore, the dark blue color indicates that the saccharide contains starch.

**Correct Option:**

- The saccharide must contain starch

This test is specifically positive for substances containing starch and does not indicate the presence of glucose or monosaccharides alone.
Transcribed Image Text:**Starch-Iodine Test and Saccharide Identification** A sample of a saccharide turns dark blue when subjected to the starch iodine test. What does this result indicate about the saccharide? - The saccharide must be glucose - The saccharide must be a monosaccharide - The saccharide must contain starch - More information is required **Explanation:** The starch iodine test is used to identify the presence of starch in a sample. When iodine solution is added to a sample containing starch, it binds to the amylose component of starch, producing a dark blue color. Therefore, the dark blue color indicates that the saccharide contains starch. **Correct Option:** - The saccharide must contain starch This test is specifically positive for substances containing starch and does not indicate the presence of glucose or monosaccharides alone.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 1 images

Blurred answer
Knowledge Booster
Carbohydrates
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.
Similar questions
Recommended textbooks for you
Chemistry
Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
Chemistry
Chemistry
Chemistry
ISBN:
9781259911156
Author:
Raymond Chang Dr., Jason Overby Professor
Publisher:
McGraw-Hill Education
Principles of Instrumental Analysis
Principles of Instrumental Analysis
Chemistry
ISBN:
9781305577213
Author:
Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:
Cengage Learning
Organic Chemistry
Organic Chemistry
Chemistry
ISBN:
9780078021558
Author:
Janice Gorzynski Smith Dr.
Publisher:
McGraw-Hill Education
Chemistry: Principles and Reactions
Chemistry: Principles and Reactions
Chemistry
ISBN:
9781305079373
Author:
William L. Masterton, Cecile N. Hurley
Publisher:
Cengage Learning
Elementary Principles of Chemical Processes, Bind…
Elementary Principles of Chemical Processes, Bind…
Chemistry
ISBN:
9781118431221
Author:
Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:
WILEY