☰ Pharmaceutical Analysis (Pharmacy Allopathy) - MCQs

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Q79.

All the following are electron donating groups except:

  • A. -NH₂
  • B. -OH
  • C. -OCH3
  • D. NO2
    ✍ Discuss    
Q80.

Which of the following is an example of Diazonium ion?

  • A. CH3N3+
  • B. CH3N₂+
  • C. H2N-NH3
  • D. None of these
    ✍ Discuss    
Q81.

If an organic compound does not absorb UV visible radiation it does not means compound does not contain:

  • A. Sigma bond
  • B. Single bond
  • C. Conjugated double bond
  • D. Dative bond
    ✍ Discuss    
Q82.

The ratio of distance travelled by solute to the distance travelled by solvent is known as

  • A. Rm
  • B. Rx
  • C. Rf
  • D. Rt
    ✍ Discuss    
Q83.

Decrease in fluorescence intensity due to:

  • A. Change in pH
  • B. Presence of halides and O₂
  • C. Presence of heavy metals
  • D. All the above
    ✍ Discuss    
Q84.

Principle involved in paper chromatography:

  • A. Adsorption
  • B. Exclusion
  • C. Affinity
  • D. Partition
    ✍ Discuss    
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