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MCQs

Total Questions : 1678 | Page 9 of 168 pages
Question 81. Formula showing simplest whole number ratio is
  1.    scientific
  2.    mathematical
  3.    molecular
  4.    empirical
 Discuss Question
Answer: Option D. -> empirical
Answer: (d).empirical
Question 82. Unstable isotopes are produced by artificial
  1.    Disintegration
  2.    splitting
  3.    energy less
  4.    absorbance
 Discuss Question
Answer: Option A. -> Disintegration
Answer: (a).Disintegration
Question 83. Number of isotopes occupied by Palladium is
  1.    seven
  2.    six
  3.    nine
  4.    eleven
 Discuss Question
Answer: Option B. -> six
Answer: (b).six
Question 84. Number of radioactive isotopes is
  1.    30
  2.    40
  3.    50
  4.    60
 Discuss Question
Answer: Option B. -> 40
Answer: (b).40
Question 85. Amount of KOH used in combustion analysis is
  1.    50%
  2.    60%
  3.    70%
  4.    80%
 Discuss Question
Answer: Option A. -> 50%
Answer: (a).50%
Question 86. The method that is not applicable for protection against rust is
  1.    Barrier protection
  2.    Electroplating
  3.    Sacrificial protection
  4.    Coating of hydrated silver oxide
 Discuss Question
Answer: Option D. -> Coating of hydrated silver oxide
Answer: (d).Coating of hydrated silver oxide
Question 87. It is a type of volumetric analysis that depends on the formation of precipitates
  1.    Precipitation Titration
  2.    Volumetric Titration
  3.    Gravimetric Titration
  4.    Redox titration
 Discuss Question
Answer: Option A. -> Precipitation Titration
Answer: (a).Precipitation Titration
Question 88. The most important precipitating agent used in precipitation titration is
  1.    Silver nitrate
  2.    Sodium nitrate
  3.    Potassium nitrate
  4.    Calcium nitrate
 Discuss Question
Answer: Option A. -> Silver nitrate
Answer: (a).Silver nitrate
Question 89. The standard solution in titration in Mohr's method is
  1.    AgNO₃
  2.    NaNO₃
  3.    KNO₃
  4.    CaCO₃
 Discuss Question
Answer: Option A. -> AgNO₃
Answer: (a).AgNO₃
Question 90. In gas, chromatography gas is used to move a gaseous mixture through a column of absorbent material.
  1.    Oxygen
  2.    Hydrogen
  3.    Helium
  4.    Nitrogen
 Discuss Question
Answer: Option C. -> Helium
Answer: (c).Helium

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