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MCQs

Total Questions : 228 | Page 15 of 23 pages
Question 141. The most difficult type of precipitate that is to in quantitative analysis is
  1.    Crude type
  2.    Insoluble
  3.    Crystalline
  4.    Gelatinous
 Discuss Question
Answer: Option D. -> Gelatinous
Answer: (d).Gelatinous
Question 142. The process of filtration is used to separate solid from
  1.    Liquid
  2.    Solid
  3.    Gas
  4.    All of above
 Discuss Question
Answer: Option B. -> Solid
Answer: (b).Solid
Question 143. Free iodine molecules present in the organic layer are
  1.    Blue in color
  2.    Red in color
  3.    Purple in color
  4.    Brown in color
 Discuss Question
Answer: Option C. -> Purple in color
Answer: (c).Purple in color
Question 144. Sintered glass is a porous material used for
  1.    Absorption
  2.    Decoration
  3.    Filtration
  4.    All of above
 Discuss Question
Answer: Option C. -> Filtration
Answer: (c).Filtration
Question 145. The detection of functional group is called
  1.    Numerical analysis
  2.    Quantitative analysis
  3.    Qualitative analysis
  4.    All of above
 Discuss Question
Answer: Option A. -> Numerical analysis
Answer: (a).Numerical analysis
Question 146. The color of tri-iodide ions are
  1.    Green
  2.    Yellow
  3.    Brown
  4.    Red
 Discuss Question
Answer: Option C. -> Brown
Answer: (c).Brown
Question 147. A quantitative indication of how far a particular compound travels in a particular solvent is called
  1.    Retention factor
  2.    Absorption factor
  3.    Partition factor
  4.    None of above
 Discuss Question
Answer: Option A. -> Retention factor
Answer: (a).Retention factor
Question 148. The method used to obtain iodine present in water is
  1.    Sublimation
  2.    Chromatography
  3.    Solvent extraction
  4.    Filtration
 Discuss Question
Answer: Option C. -> Solvent extraction
Answer: (c).Solvent extraction
Question 149. The solvents used in crystallization are
  1.    Water
  2.    Acetone
  3.    Chloroform
  4.    All of above
 Discuss Question
Answer: Option D. -> All of above
Answer: (d).All of above
Question 150. The type of chromatography is used in airports to detect bombs
  1.    Gas chromatography
  2.    Liquid chromatography
  3.    Thin-layer chromatography
  4.    Paper chromatography
 Discuss Question
Answer: Option A. -> Gas chromatography
Answer: (a).Gas chromatography

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