Testing for Reducing Sugars

What is the purpose of Benedict's Test?

• To be familiar with mole, molarity and molar mass concepts

• To understand the principles of volumetric analysis, acid and base reactions.

• To test for the presence of reducing sugars in a substance

• To understand stoichiometric principles

Which material was not used during experiment?

• 
• 
• 
• 

If the solution doesn't contain any sugar, Benedict's reagernt will..

• turn into green

• stay blue

• turn into yellow

• turn into red

Tags

NGSS.MS-PS1-2

Which solution was not used in the experiment ?

• Water

• Apple juice

• Fat/oil

• Glucose

What is the order of colour change ?

• blue , green, yellow, orange , brick red

• blue,yellow, brick red, orange, green

• green, yellow, orange ,blue, brick red

• orange, yellow, blue, brick red, green

What is benedict's reagent?

• potassium hyroxide

• copper 2 sulphate

• hydrogen chloride

• sodium hyroxide

What is the meaning of this photo ?

• low concentration

• medium concentration

• high concentration

• no reducing sugars

Tags

NGSS.MS-PS1-2

During Benedict's experiment, you must ..

• add salt

• measure acidity with litmus paper

• filter the precipitate

• put your test tubes into a hot water bath

Tags

NGSS.HS-PS1-5

NGSS.HS-PS3-4

Which of the following conditions must be met for Benedict's Test to give a positive result?

• The solution must be acidic

• The solution must be alkaline

• The solution must contain a protein

• The solution must contain a reducing sugar

Which of the following is a common modification of Benedict's Test?

• Tollens' Test

• Barfoed's Test

• Fehling's Test

• Seliwanoff's Test