Use Coupon: CART40 and get 40% off on all online Study Material

Total Price: R

There are no items in this cart.
Continue Shopping
Get instant 20% OFF on Online Material.
coupon code: MOB20 | View Course list


What forms when D-Galactose reacts with (a)acetic anhydride, (b)NaBH4, (c) H2, Ni and (d)NaOH and acetaldehyde?

5 years ago


Answers : (1)


Dear student,

Galactose is a type of sugar found in milk products and sugar beets. It is also made by the body. It is considered a nutritive sweetener because it has calories.

Galactose is a monosaccharide constituent, together with glucose, of the disaccharide lactose. The hydrolysis of lactose to glucose and galactose is catalyzed by the enzyme beta-galactosidase, a lactase.

Individuals who lack this enzyme are 'lactose intolerant' and unable to realize the nutritive potential of milk sugars. The lactose then passes to the large intestine where it is digested by bacteria, producing gas and flatulence.

Galactose is a monosaccharide. It contains six carbons and an aldehyde group and is classified as an aldose and a hexose. Both the D and L forms are found in nature. The structure depicted at the right is the D isomer. D-Galactose is commonly found in milk as part of the disaccharide lactose. L-Galactose is present in polysaccharides, such as agar.

Galactose is a sugar formed from dietary lactose. It is converted to galactose-1-phosphate and other metabolites by several enzymes, especially phosphogalactose uridyl transferase. A decrease or lack of the enzyme will cause elevated galactose and galactose-1-phosphate levels in the bloodstream.

Picture of Galactose


We are all IITians and here to help you in your IIT JEE preparation.

All the best.

 If you like this answer please approve it....

win exciting gifts by answering the questions on Discussion Forum


Sagar Singh

B.Tech IIT Delhi

5 years ago

Post Your Answer

what is mole fraction
Whereas mole fraction is a ratio of moles to moles , molar concentration is a ratio of moles to volume. The mole fraction is one way of expressing the composition of a mixture with a...
sanjay 3 months ago
Number of moles of solute by total number of moles of solution is called molefraction
RAKESH CHINDAM 3 months ago
Mole fraction is defined as the ratio of moles to moles .
Pushing a person in a swing is a common example of resonance . The loaded swing, a pendulum, has a natural frequency of oscillation, its resonant frequency, and resists being pushed at a...
sanjay 3 months ago
Pushing a person in a swing is a common example of resonance . The loaded swing, a pendulum, has a natural frequency of oscillation, its resonant frequency, and resists being pushed at a...
KARTHIK 2 months ago
resonance structures is defined as a resonance hybrid, which represents the overall delocalization of electrons within the molecule. A molecule that has several resonance structures is more ...
venky 2 months ago
which is the king of chemical
sulphiric acid
KUNCHAM SAMPATH 3 months ago
H 2 SO 4 Sulphuric acid
RAKESH CHINDAM 3 months ago
Sulphuric acid 4 SO 2 H
sanjay 3 months ago
Why zinc sulphide screen is used inαscattering experiment
Hello dhruv, zinc sulphide releases a photon having wavelength of visible light when it is hit by a charged particle. in alpha scattering, alpha particles are scattered to different degree...
Neeti 4 months ago
You are most welcome, you could also approve the answer if you liked it :)
Neeti 4 months ago
Thanks for your an
Dhruv Desai 4 months ago
what is chemical formula of colemanite?
the chemical formula of colemanite Ca 2 B 6 O 11
L GOUSE BASHA 2 months ago
sanjay 3 months ago
Chemical Formula Ca 2 B 6 O 11 · 5H 2 O
DURGA PRASAD 2 months ago
nitrogen symbol?
DURGA PRASAD 2 months ago
mamidi 2 months ago
Nitrogen is a chemical element with symbol N and atomic number 7. It is the lightest pnictogen and at room temperature, it is a transparent, odorless diatomic
BOLLU SRINIVAS 2 months ago
View all Questions »
More Questions On Organic Chemistry

Ask Experts

Have any Question? Ask Experts

Post Question

Answer ‘n’ Earn
Attractive Gift
To Win!!!
Click Here for details