organic compounds
Authored by Annmarie Klapper
Biology
9th Grade
NGSS covered
Used 12+ times
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13 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
what is the chemical used to test for simple sugars
Biuret test
Sudan III test
Iodine test
Benedict's test
Answer explanation
Benedict's test is used to test for simple sugars. It is a chemical test that involves the reaction of reducing sugars with Benedict's reagent, resulting in a color change from blue to green, yellow, orange, or red, depending on the concentration of sugar present.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
what does the positive test for simple sugars look like
The solution becomes cloudy
The solution forms a precipitate
The solution changes color to yellow/red/orange/green
The solution emits a foul odor like rotten eggs
Answer explanation
The positive test for simple sugars is indicated by a color change to yellow/red/orange/green.
Tags
NGSS.HS-PS1-2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
what is the chemical used to test for proteins
Biuret reagent
Potassium permanganate
Hydrochloric acid
Sodium hydroxide
Answer explanation
Biuret reagent is the chemical used to test for proteins. It reacts with proteins to produce a violet color, indicating the presence of proteins.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
what does the positive test for protein look like
Color change from blue to violet/lavender
Color change from violet/lavender to blue
No color change
Color change from blue to green
Answer explanation
The positive test for protein is indicated by a color change from blue to violet/lavender.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
what is the chemical used to test for starch
sodium chloride
hydrogen peroxide
iodine
sulfuric acid
Answer explanation
Iodine is the chemical used to test for starch. It reacts with starch to produce a blue-black color, indicating the presence of starch.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
what does the positive test for lipids look like
A color change, a red/pink layer forms
A green color change
No change in color
A sound is produced
Answer explanation
The positive test for lipids is indicated by a color change, specifically a red/pink layer forms.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
what chemical is used to test for lipids
Benedict's solution
Iodine solution
Silver nitrate
Sudan III
Answer explanation
Sudan III is the chemical used to test for lipids. It is the correct choice because it specifically reacts with lipids, producing a red color.
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