☰ Pharmaceutical Analysis (Pharmacy Allopathy) - MCQs

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Q73.

Caffeine reduces the fluorescence of riboflavin by complex formation is:

  • A. Collision
  • B. Static Quenching
  • C. Chemical Quenching
  • D. Self Quenching
    ✍ Discuss    
Q74.

Wave length of emitted radiation is equal to absorbed radiation is:

  • A. Anti stoker
  • B. Stokes fluorescence
  • C. Resonance fluorescence
  • D. None
    ✍ Discuss    
Q75.

All the following are electron withdrawing groups decrease fluorescence except:

  • A. COOH
  • B. NO₂
  • C. N=N
  • D. OH
    ✍ Discuss    
Q76.

The common factors affecting the fluorescence is

  • A. Temperature and solvent
  • B. pH
  • C. Dissolved O₂
  • D. All the above
    ✍ Discuss    
Q77.

Flame colour of Ca++is

  • A. Yellow
  • B. Violet
  • C. Orange
  • D. Red
    ✍ Discuss    
Q78.

Detector used in spectrofluorimeter is:

  • A. Photomultiplier tube
  • B. Golay cell
  • C. Bolometer
  • D. All
    ✍ Discuss    
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