Stoichiometry MCQs Part24

Chemistry Quiz of Stoichiometry MCQs

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Calculation based on the chemical equations are known as the stoichiometry and this Chemistry Quiz contains Stoichiometry MCQs.

MCQ-1.  If a compound containing 50 % of element A having atomic weight 10 and 50 % of element B having atomic weight 20 then, its simplest formula is :

  AB
  A2B
  AB3
  A2B3

MCQ-2.  Element A having atomic weight 75 and element B having atomic weight 16 combine together to give a compound. This compound have 75.8% of A then, the formula of the compound is :

  AB
  A2B
  A2B2
  A2B3

MCQ-3.  The equivalent weight of calcium phosphate Ca3(PO4)2 is ___________. (Given Molecular Weight = 310) :

  310
  310/2
  310/3
  310/6

MCQ-4.  The percentage of oxygen in NaOH is :

  0.01
  0.08
  0.16
  0.4

MCQ-5.  Number of moles of KCl in 1000ml of 3 molar solution is :

  1
  2
  3
  4

MCQ-6.  How much quicklime can be obtained from the 25 gram of CaCO3 :

  14
  28
  42
  56

MCQ-7.  0.528 gram of a monocarboxylic acid requires 6meq of a base for the neutralization. Sodium salt of this acid on heating with soda lime will give :

  Ethane
  Propane
  Butane
  Pentane

MCQ-8.  When 10 gram of 90% pure lime stone is heated completely, the volume in litres of carbon dioxide librated at STP is :

  2.016
  2.24
  20.16
  22.4

MCQ-9.  If the solubility of the Salt in water is 40 at 30 degree celcius. How much amount of water is required to dissolve 120 gram salt at the same temperature: :

  200 gram
  4 litre
  300 gram
  8 litre

MCQ-10.  When 26 c.c. of CO2 is passed over the red hot coke, then volume of CO evolved is :

  10 c.c.
  15 c.c.
  32 c.c.
  None of these

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