Welcome to the Stoichiometry MDCAT MCQs with Answers. In this post, we have shared Stoichiometry Multiple Choice Questions and Answers for PMC MDCAT 2024. Each question in MDCAT Chemistry offers a chance to enhance your knowledge regarding Stoichiometry MCQs in this MDCAT Online Test.
The study of the quantitative relationship between reactants and products in a chemical reaction is called:
A) Thermodynamics
B) Stoichiometry
C) Kinetics
D) Electrochemistry
The coefficients in a balanced chemical equation represent:
A) Mass ratios
B) Mole ratios
C) Volume ratios
D) Energy levels
How many moles of H₂O are produced when 2 moles of H₂ react with 1 mole of O₂?
A) 1 mole
B) 2 moles
C) 3 moles
D) 4 moles
In the reaction N₂ + 3H₂ → 2NH₃, how many moles of NH₃ are formed from 5 moles of H₂?
A) 2 moles
B) 3.33 moles
C) 5 moles
D) 6 moles
Which law is the basis for stoichiometry?
A) Law of Conservation of Mass
B) Boyle’s Law
C) Charles’s Law
D) Hess’s Law
What volume of CO₂ is produced at STP when 1 mole of CH₄ combusts completely?
A) 22.4 L
B) 44.8 L
C) 11.2 L
D) 33.6 L
The molar ratio of O₂ to CO₂ in the combustion of C₂H₆ is:
A) 1:1
B) 2:1
C) 3:2
D) 5:4
How many grams of NaCl are produced from 1 mole of HCl reacting with NaOH?
A) 36.5 g
B) 58.5 g
C) 60 g
D) 40 g
In the reaction 2KClO₃ → 2KCl + 3O₂, how many moles of O₂ are produced from 4 moles of KClO₃?
A) 2 moles
B) 4 moles
C) 6 moles
D) 8 moles
Which reactant determines the amount of product formed in a reaction?
A) Catalyst
B) Excess reactant
C) Limiting reactant
D) Intermediate reactant
How many grams of CO₂ are produced when 44 g of CH₄ combusts completely?
A) 88 g
B) 132 g
C) 176 g
D) 44 g
If 5 moles of H₂ react with 3 moles of O₂, how many moles of H₂O are produced?
A) 2 moles
B) 5 moles
C) 6 moles
D) 10 moles
In the reaction 2Al + 3Cl₂ → 2AlCl₃, how many moles of AlCl₃ are produced from 3 moles of Al?
A) 1 mole
B) 2 moles
C) 3 moles
D) 4.5 moles
How many liters of O₂ are needed at STP to react with 4 moles of H₂ in 2H₂ + O₂ → 2H₂O?
A) 22.4 L
B) 44.8 L
C) 89.6 L
D) 11.2 L
The stoichiometric coefficients in a balanced equation represent the ratio of:
A) Reactant masses
B) Reactant moles
C) Reaction energies
D) Reaction volumes
In the reaction C + O₂ → CO₂, what mass of CO₂ is produced from 12 g of C?
A) 22 g
B) 32 g
C) 44 g
D) 56 g
The reactant in excess in a reaction:
A) Determines the theoretical yield
B) Remains unreacted
C) Limits the reaction
D) Is always the one with the smaller mole quantity
The molar volume of a gas at STP is:
A) 11.2 L
B) 22.4 L
C) 33.6 L
D) 44.8 L
What is the molar mass of a compound if 2 moles weigh 180 g?
A) 90 g/mol
B) 180 g/mol
C) 45 g/mol
D) 360 g/mol
In the reaction 2H₂ + O₂ → 2H₂O, how many grams of water are produced from 4 g of H₂?
A) 9 g
B) 18 g
C) 36 g
D) 72 g
If you are interested to enhance your knowledge regarding Physics, Chemistry, Computer, and Biology please click on the link of each category, you will be redirected to dedicated website for each category.
