GLUCOSE AND FRUCTOSE

What is the molecular formula of both glucose and fructose?

• C₆H₆O₆

• C₆H₁₂O₆

• C₁₂H₂₂O₁₁

• C₅H₁₀O₅

What functional group does glucose contain in its straight-chain form?

• Ketone

• Ester

• Carboxylic acid

• Aldehyde

What functional group is present in fructose?

• Aldehyde

• Ketone

• Carboxylic acid

• Ester

In solution, glucose mainly exists as a _____.

• Straight-chain molecule

• Five-membered cyclic structure

• Linear polymer

• Six-membered cyclic structure

What happens when glucose reacts with Cu(OH)₂ at room temperature?

• A soluble dark blue complex forms

• A red precipitate forms

• Glucose decomposes

• Metallic copper is produced

The silver mirror reaction involves which reagent?

• Fehling’s solution

• Bromine water

• Ammonical silver nitrate

• Copper(II) sulfate

In the silver mirror reaction, glucose ______ to gluconic acid.

• is reduced

• is oxidized

• is solubled

• is broken down

Fructose is commonly found in which substance?

• Milk

• Rice

• Potatoes

• Honey

Fructose forms a cyclic structure with how many members in the ring?

• Four

• Six

• Five

• Seven

Which statement about glucose is correct?

• It is insoluble in water

• It is the main sugar in the blood

• It is a liquid at room temperature

• It contains an ketone group