MDCAT Practice MCQs 2023

MDCAT Practice MCQs 2023. MDCAT Chemistry MCQs MDCAT stands for the Medical and Dental College Admission Test. It is the entrance exam for medical and dental colleges in Pakistan. The exam is conducted by the University of Health Sciences (UHS). The MDCAT exam consists of questions from five major subjects, of which Chemistry is one. This article contains a set of multiple choice questions (MCQs) from the Chemistry section of the MDCAT exam.

MDCAT Practice MCQs 2023:

Q1: Which of the following is an example of a covalent compound?

A) Sodium chloride B) Carbon dioxide C) Magnesium oxide D) Iron oxide

Answer: B) Carbon dioxide

Q2: What is the concentration of a solution that contains 0.2 moles of a solute in 0.5 liters of the solution?

A) 0.2 M B) 0.4 M C) 0.5 M D) 1.0 M

Answer: A) 0.2 M

Q3: How many unpaired electrons are present in the ground state of a nitrogen atom?

A) 2 B) 4 C) 6 D) 8

Answer: A) 2

Q4: Which of the following elements has the highest electronegativity?

A) Carbon B) Hydrogen C) Oxygen D) Chlorine

Answer: D) Chlorine

Q5: What is the pH of a 0.1 M solution of hydrochloric acid?

A) 0 B) 1 C) 2 D) 3

Answer: D) 3

Q6: What is the correct formula for barium oxide?

A) BaO B) Ba2O C) Ba3O D) Ba4O

Answer: A) BaO

Q7: What is the name of the compound with the molecular formula H2O?

A) Water B) Hydrogen peroxide C) Hydrogen sulfide D) Methane

Answer: A) Water

Q8: What is the oxidation number of sulfur in sulfuric acid (H2SO4)?

A) +2 B) +4 C) -2 D) -4

Answer: B) +4

MDCAT Chemistry MCQs :

Q9: What is the name of the compound with the molecular formula CO2?

A) Carbon dioxide B) Carbon monoxide C) Carbide on tetroxide D) Carbon trioxide

Answer: A) Carbon dioxide

Q10: What is the name of the compound with the molecular formula HCl?

A) Hydrogen chloride B) Hydrochloric acid C) Chlorine D) Carbonic acid

Answer: B) Hydrochloric acid

1. What is the atomic number of oxygen?

A. 8

2. Which of the following is a noble gas?

A. Argon

3. What is the molecular formula for water?

A. H2O

4. What is the mass of an electron?

A. 0.00054858 amu

5. What is the name of the compound with the formula NaCl?

A. Sodium Chloride

6. What type of reaction takes place when two elements combine to form a compound?

A. Chemical Reaction

7. What type of reaction occurs when a substance is broken down into simpler substances?

A. Decomposition Reaction

8. What is the name of the process in which two or more substances combine to form one substance?

A. Synthesis

9. What type of reaction occurs when two elements exchange ions to form two new compounds?

A. Exchange Reaction

10. What is the name of the reaction in which heat is released?

A. Exothermic Reaction