Q11 of 26 Page 1

(i) Which one of the following is an oligosaccharide: starch, maltose, fructose, glucose

(ii) Write one difference between DNA and RNA.


(iii) Write the name of the disease caused by the deficiency of Vitamin B1.


(i) Carbohydrates that yield two to ten monosaccharide units, on hydrolysis, are called oligosaccharides. Therefore, out of the following Maltose is an oligosaccharide, it gives two molecules of glucose only.


(ii) In DNA molecules, the sugar moiety is β-D-2-deoxyribose whereas in RNA molecule, it is β-D-ribose.



(iii) The name of the disease caused by the deficiency of Vitamin B1 is Beri beri (loss of appetite and retarded growth).


More from this chapter

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9

(i) Write down the IUPAC name of the following complex: K3[Fe(CN)6]

(ii) Write the formula for the following complex: Pentaamminenitrito-N-cobalt(III)


 10

(i) On mixing liquid X and liquid Y, the volume of the resulting solution increases. What type of deviation from Raoult’s law is shown by the resulting solution? What change in temperature would you observe after mixing liquids X and Y?

(ii) How can the direction of osmosis be reversed? Write one use of reverse osmosis.


 12

Calculate E°cell for the following reaction at 25oC:

A + B2+(0.001 M) A2+(0.0001 M) + B


Given: Ecell = 2.6805, 1 F = 96500 C/mol


 13

Differentiate between the following:

(i) Solution and Colloid


(ii) Homogeneous catalysis and Heterogeneous catalysis


(iii) O/W emulsion and W/O emulsion