Fundamentals of Chemistry MCQs for MDCAT Practice
Chemistry section, Fundamentals of Chemistry chapter. Sample questions from past PMC papers.
Practice Fundamentals of Chemistry questions from the Chemistry section of MDCAT. The full bank has 1149 questions on this chapter, fully explained, with distractor analysis and spaced repetition flashcards. Free with signup.
- Question 1In a vessel 10g N2, 10g H2 and 10g O2 are present. Which one will have least number of atoms?
- A.H2
- B.N2
- C.O2
- D.Both H2 and N2
Sign up free to see the explanation, distractor analysis, and add this to your spaced repetition deck. - Question 2The molecular mass of a compound is 60, and its empirical formula is CH2O. What will be the molecular formula for a compound?
- A.C6H12O6
- B.C2H4O2
- C.C2H6O2
- D.C2H8O2
Sign up free to see the explanation, distractor analysis, and add this to your spaced repetition deck. - Question 3How many total number of electrons are present in 48 g of Mg2+? (NA = 6.023 x 1023)
- A.24 NA
- B.2 NA
- C.20 NA
- D.1 NA
Sign up free to see the explanation, distractor analysis, and add this to your spaced repetition deck. - Question 4In this question you should assume air contains 20% oxygen. What is the minimum volume of air required to ensure complete combustion of 10 cm3 of butane gas, under room conditions?
- A.14 cm3.
- B.65 cm3.
- C.310 cm3.
- D.325 cm3.
Sign up free to see the explanation, distractor analysis, and add this to your spaced repetition deck. - Question 5Efficiency of chemical reaction can be checked by calculating
- A.Actual yield
- B.Theoretical yield
- C.Percentage yield
- D.Amount of the reactant unused
Sign up free to see the explanation, distractor analysis, and add this to your spaced repetition deck. - Question 6If we are given the mass of a substance, we can calculate _____ of other substances with the help of a balanced chemical equation.
- A.Mass
- B.Volume
- C.Moles
- D.All of these options are correct
Sign up free to see the explanation, distractor analysis, and add this to your spaced repetition deck. - Question 7Which of the following compound contains the highest percentage by mass of nitrogen?
- A.NH3
- B.N2H4
- C.NO
- D.NH4OH
Sign up free to see the explanation, distractor analysis, and add this to your spaced repetition deck. - Question 8Which contains more atoms?
- A.7 gram Mg
- B.8 gram Na
- C.9 gram Al
- D.All same
Sign up free to see the explanation, distractor analysis, and add this to your spaced repetition deck.
Get the full Fundamentals of Chemistry bank
1149 questions with deep explanations, distractor analysis, and curated high-yield selection. Free with signup.
Sign up freeRead the full Fundamentals of Chemistry chapter notes: Fundamentals of Chemistry notes