Download App

Biomolecules — Chemistry STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceChemistryBiomolecules2 Marks
Question
What is meant by inversion of sugar?
✓

Answer

Sucrose is dextrorotatory but on hydrolysis it gives an equimolar mixture of D-(+)- glucose and D-(-)-fructose which is laevorotatory. This change of specific rotation from dextrorotation to laevorotation is known as inversion of sugar.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "2 Marks Questions" from Biomolecules→Biomolecules — all question types→Chemistry STD 12 Science question papers→Gujarat Board STD 12 Science question papers→Gujarat Board question paper generator→

Similar questions

Write a note on tertiary structure of protein compound.
→
Note: In the following questions a statement of assertion followed by a statement of reason is given. Choose the correct answer out of the following choices.
Assertion: The total number of atoms present in a simple cubic unit cell is one.
Reason: Simple cubic unit cell has atoms at its corners, each of which is shared between eight adjacent unit cells.
→
What is the electric resistance and resistivity ?
→
In what way is the electronic configuration of the transition elements different from that of the non transition elements?
→
Explain chemical reactivity of transition metals.
→
How are vitamins classified? Name the vitamin responsible for the coagulation of blood.
→
Explain the preparation of carboxylic acid from esters with necessary equations.
→
a. Find the value of van't Hoff factor for acetic acid in benzene as per the given equation:
$2 CH _3 COOH \leftrightharpoons\left( CH _3 COOH \right)_2$, assuming its complete association.
b. Osmotic pressure of a solution containing 3.5 g of dissolved protein in 0.05 L of a solution is 0.035 atm at 310 K . Calculate the molar mass of the protein.$\left( R =0.0821 L atm K ^{-1} mol^{-1}\right)$
→
What are natural and synthetic polymers? Give two examples of each type.
→
Note: In the following questions a statement of assertion followed by a statement of reason is given. Choose the correct answer out of the following choices.
Assertion: The packing efficiency is maximum for the fcc structure.
Reason: The cordination number is $12$ in $fcc$ structures.
→