Question
Short note on :Lactose

Answer

It is more commonly known as milk sugar since this disaccharide is found in milk.
It is composed of ẞ-D-galactose and ẞ-D-Glucose
Image
The linkage is between C1 of galactose and C4 of glucose.
Free aldehyde group may be produced at C-1 of glucose unit, hence it is also a reducing sugar.
Image

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

Similar questions

A reaction is first order in A and second order in B.
  1. Write the differential rate equation.
  2. How is the rate affected on increasing the concentration of B three times?
  3. How is the rate affected when the concentrations of both A and B are doubled?
Complete the following :
(i) $NaBr + H _2 SO _4 \xrightarrow[ MnO _2]{\Delta}$
(ii) $I _2+ Na _2 S_2 O _3 \longrightarrow$
Give examples and IUPAC names of the following types of complexes :
(i) Neutral complex
(ii) Negative complex
(iii) Positive complex.
Why do gases always tend to be less soluble in liquids as the temperature is raised?
Analyse the given graph, drawn between concentration of reactant vs. time.
Image
(a) Predict the order of reaction.
(b) Theoretically, can the concentration of the reactant reduce to zero after infinite time? Explain.
Calculate standard cell potential for the following cell $Al ( s )\left| Al ^{+3}(1 M )\right|\left| Ag ^{+}(1 M )\right| Ag ( s )$
FeSO4 solution mixed with (NH4)2SO4 solution in 1:1 molar ratio gives the test of Fe2+ ion but CuSO4 solution mixed with aqueous ammonia in 1:4 molar ratio does not give the test of Cu2+ ion. Explain why? 
Calculate the 'spin only' magnetic moment for $M _{( aq )}^{2+}( Z =25)$.
Henry’s law constant for the molality of methane in benzene at 298 K is 4.27 × 105 mm Hg. Calculate the solubility of methane in benzene at 298 K under 760 mm Hg.
Explain the Tollens' test to distinguish aldehydes from ketones with equation. ### Write a note on silver mirror test.