Biomolecules · JEE Main previous year questions

2006 3 questions

1. Q1162006 · 29 Apr 2006 · Shift 1

   $18\mathrm{g}$ of glucose (${\mathrm{C}}_6{\mathrm{H}}_{12}{\mathrm{O}}_6$) is added to $178.2\mathrm{g}$ of water. The vapour pressure of water for this aqueous solution at $100^{\circ }\mathrm{C}$ is

   1. A.$759.00\mathrm{Torr}$
   2. B.$7.60\mathrm{Torr}$
   3. C.$76.00\mathrm{Torr}$
   4. D.$752.40\mathrm{Torr}$
   Show answer

   Answer: D

2. Q1372006 · 29 Apr 2006 · Shift 1

   The term anomers of glucose refers to

   1. A.isomers of glucose that differ in configurations at carbons one and four (C-1 and C-4)
   2. B.a mixture of (D)-glucose and (L)-glucose
   3. C.enantiomers of glucose
   4. D.isomers of glucose that differ in configuration at carbon one (C-1)
   Show answer

   Answer: D

3. Q1382006 · 29 Apr 2006 · Shift 1

   The pyrimidine bases present in DNA are

   1. A.cytosine and adenine
   2. B.cytosine and guanine
   3. C.cytosine and thymine
   4. D.cytosine and uracil
   Show answer

   Answer: C