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MCQs

Total Questions : 740 | Page 72 of 74 pages
Question 711. The number of moles of solute dissolved in 1000g of the solvent is
  1.    Molality
  2.    Molarity
  3.    Normality
  4.    All of above
 Discuss Question
Answer: Option A. -> Molality
Answer: (a).Molality
Question 712. The molecular mass of H₂O is
  1.    18 grams
  2.    18 amu
  3.    1.8 grams
  4.    180 amu
 Discuss Question
Answer: Option B. -> 18 amu
Answer: (b).18 amu
Question 713. Any molecular species having positive charge is called
  1.    Molecular cation
  2.    Molecular anion
  3.    Micro ion
  4.    Macro ion
 Discuss Question
Answer: Option A. -> Molecular cation
Answer: (a).Molecular cation
Question 714. The sum of atomic mass of all the atoms present in one molecule of a molecular compound is
  1.    Ionic Mass
  2.    Molecular Mass
  3.    Formula unit
  4.    Atomic number
 Discuss Question
Answer: Option B. -> Molecular Mass
Answer: (b).Molecular Mass
Question 715. 44 amu is the molecular mass of
  1.    H₂O
  2.    H₂S
  3.    CO₂
  4.    CO
 Discuss Question
Answer: Option C. -> CO₂
Answer: (c).CO₂
Question 716. The number of moles of solute dissolved per dm³ of the solution is
  1.    Molality
  2.    Molarity
  3.    Normality
  4.    None of above
 Discuss Question
Answer: Option B. -> Molarity
Answer: (b).Molarity
Question 717. The molecular mass of HNO₃ is
  1.    61 amu
  2.    62 amu
  3.    63 amu
  4.    64 amu
 Discuss Question
Answer: Option C. -> 63 amu
Answer: (c).63 amu
Question 718. To calculate the volume of solvent, we need to know the
  1.    Density of solute
  2.    Normality of solute
  3.    Mass of solute
  4.    Molarity
 Discuss Question
Answer: Option D. -> Molarity
Answer: (d).Molarity
Question 719. Molarity of pure water is
  1.    33.3
  2.    55.5
  3.    44.4
  4.    6.1
 Discuss Question
Answer: Option B. -> 55.5
Answer: (b).55.5
Question 720. Molar Volume of an ideal gas at S.T.P. is
  1.    Molecular formula
  2.    Molecular Formula
  3.    22.414dm³
  4.    Mass of 1.87 moles NH₃
 Discuss Question
Answer: Option C. -> 22.414dm³
Answer: (c).22.414dm³

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