Home
Class 12
CHEMISTRY
Assertion (A) D(+)- Glucose is dextrorot...

Assertion (A) `D(+)-` Glucose is dextrorotatory in nature.
Reason (R) 'D' represents its dextrorotatory nature.

A

Both A and Rare true and R is the correct explanation of A

B

Both A and R are true but R is NOT the correct explanation of A

C

A is true but R is false

D

A is false and R is True

Text Solution

Verified by Experts

The correct Answer is:
C

.D. corresponds to the position of - OH group on the right side on the farthest asymmetric C-atom.
Promotional Banner

Similar Questions

Explore conceptually related problems

Assertion : Glucose is correctly named as D-(+)-glucose. ' 3 Reason : ‘D’ before the name of glucose represents its dextrorotatory nature.

A : D-fructose is levorotatory R : D-Glucose is dextrorotatory

Assertion : D-glucose is dextrorotatory whereas L-glucose is laevorotatory. Reason : D-compounds are always dextro and L-compounds are always laevorotatory

Assertion (A): LiF is ionic in nature. Reason (R): Lil is covalent in nature.

Assertion (A) : Crystalline solids are anisotropic in nature. Reason (R) : Crystalline solids melt at a sharp and characteristic temperature.

Assertion (A): Semen is alkaline in nature. Reason (R): Semen contains fructose and prostaglandin hormone.

Assertion: sucrose is called invert sugar Reason : sucrose is initially dextrorotatory but in hydrolysed solution mixture is laevaorotatory i.e ratation of light is changed

Assertion (A) : Silicones are hdyreopbhobic in nature . Reason (R) : Si -O - Si likages are moisture sensitive .