DUET 2020 Ph.D. in Chemistry Question Paper with Answer Key PDF (October 9 - Shift 3)

DUET Questions

• 1.

  Phagocytosis and pinocytosis are collectively termed as

  • endocytosis
  • suspension feeding
  • omnivores
  • mucous trap
  View Solution

  ---

• 2.

  Which of the following graphs shows the variation of acceleration due to gravity $g$ with depth $h$ from the surface of the earth?

  • 

  • 

  • 

  • 

  View Solution

  ---

• 3.

  Most stable carbocation is

  • 

  • 

  • 

  • 

  View Solution

  ---

• 4.

  Sigmoid growth curve is represented by

  • $ dN/dt=rN $
  • $ dN/dt=rN\,\,(1-N/K) $
  • $ Nt/No +B +I-D-E $
  • $ dN/dt=1-N/K $
  View Solution

  ---

• 5.

  What is the shape and magnetic nature of permanganate ion ?

  • Pyramidal diamagnetic
  • Tetrahedral, diamagnetic
  • Tetrahedral, paramagnetic
  • Planar, paramagnetic
  View Solution

  ---

• 6.

  Which one of the following alkylbromides undergoes most rapid solvolysis in methanol solution to give corresponding methyl ether?

  • 

  • 

  • 

  • 

  View Solution