MDCAT Chemistry Chapter 3 online mcq test with answers for chapter 3 (Atomic Structure)

In Chemistry, chapter 3 holds equal significance as the other chapters. The candidates planning to appear in the MDCAT should follow the syllabus. After completing the preparation, the students should solve the MCQs to analyze their preparation level and work on the weak areas. The online test is provided to facilitate the students so they can access them easily without wasting any time. The students who intend to appear in the MDCAT must take the maximum online test. It helps the students to perform well in the actual time, and in this way, they also learn about time management, which is a crucial part to consider. So save time and solve the online test at least once for better preparation and then appear in the MDCAT. To get updates about the MDCAT test, stay connected with us.

In this topic,Student should be able to:

a) Identify and describe the proton, neutron and electron in terms of their relative charges and relative masses.

b) Discuss the behaviour of beams of protons, neutrons and electrons in electric fields.

c) Calculate the distribution of mass and charges within an atom from the given data.

d) Deduce the number of protons, neutrons and electrons present in both atoms and ions for a given proton and nucleon numbers/charge.

e) i) Describe the contribution of protons and neutrons to atomic nuclei in terms of proton number and nucleon number. ii) Distinguish between isotopes on the basis of different numbers of neutrons present.

f) Describe the number and relative energies of the s, p and d orbitals for the principal quantum numbers 1, 2 and 3 and also the 4s and 4p orbitals.

g) Describe the shapes of s, p and d-orbitals.

h) State the electronic configuration of atoms and ions given, the proton number/charge for period 1, 2, 3 and 4 (hydrogen to Krypton).

Explain:

i) Ionization energy.
ii) The factors influencing the ionization energies of elements.
iii) The trends in ionization energies across a Period and down a Group of the Periodic Table.

Top Scorers Of MDCAT Chemistry Chapter 3 Atomic Structure Online Test MCQ`s Test

U

Unknown 11 - Sep - 2025 12 Min 14 Sec 20/20
S

Saim G 16 - Aug - 2025 04 Min 22 Sec 19/20
V

Vegeta King95 02 - Nov - 2024 05 Min 22 Sec 19/20
Z

Zunaira Jabeen Zunaira 11 - Sep - 2025 06 Min 17 Sec 19/20
Z

Zaina Bakhtyar 21 - Sep - 2024 09 Min 45 Sec 18/20
D

Duraid ali 07 - Dec - 2024 06 Min 06 Sec 17/20
J

Jaidev Sachdev 13 - Nov - 2024 08 Min 02 Sec 17/20
C

chachar chachar 25 - Nov - 2024 11 Min 50 Sec 17/20
S

Saleem Khann 18 - Dec - 2024 12 Min 09 Sec 17/20
A

azan aslam 17 - Nov - 2024 03 Min 25 Sec 16/20
M

Mian Bakar 12 - Nov - 2024 05 Min 15 Sec 16/20
B

Burhan Idrees 25 - Aug - 2025 07 Min 46 Sec 16/20
A

Ali kashif 27 - Sep - 2024 05 Min 47 Sec 15/20
M

Muhammad Rehan Rehan 05 - Dec - 2024 07 Min 12 Sec 15/20
S

Shah Sohaib 07 - Dec - 2024 13 Min 08 Sec 15/20

MCAT Chemistry Chapter 3 Important MCQ's

Sr.#	Question	Answer
1	What are the conditions under which the relation between volume (V) and number of moles (n) of gas is plotted? (Pressure; T-temperature)	A. constant P and T B. constant P and V C. constant T and V D. constant n and v
2	At higher temperature what is true for gases	A. pressure is decreased B. volume is decreased C. number of moles are decreased D. KE is increased
3	Acording to the kinetic theory of gases	A. The pressure exerted by a gas is proportional to mean square velocity of the molecules B. The pressure exerted by the gas is proportional to the root mean square velocity of the molecules C. The root mean square velocity is inversely proportional to the temperature D. The mean translational KE of the molecule is directly proportional to the absolute temperature
4	One dm3 of H2 and O2: has different masses but no. of particles are	A. same B. H2 has greater C. different D. O2 has greater
5	Helium atom is two times heavier than a hydrogen molecule. At 298 K, the average kinetic energy of a helium atom is	A. same as that of a hydrogen molecule B. half that of a hydrogen molecule C. two times that of a hydrogen molecule D. four times that of hydrogen molecule
6	If temperature is 73K and volume is 146 cm3 then calculate the value of K=V/T	A. 5 B. 4 C. 3 D. 2
7	At constant volume, for a fixed number of moles of a gas the pressure of the gas increases with size of temperature due to	A. increase in average molecular speed B. increase in number of moles C. increase in molecular attraction D. decrease in the distance between the molecules
8	Which of the statement is applicable for both ideal and real gases molecules?	A. Have no forces of attraction B. Collisions between the molecules is elastic C. Molecules are in random movement D. The actual volume of gas is negligible as compared to the volume of gas
9	Which of the following is the correct equation to calculate relative molecular mass of a gas	A. M=mPRTV B. M=mPR/VT C. M=PV/mRT D. M=mRT/PV
10	The volume of gas depends upon the------- moleules	A. Size of B. Space between C. Molecular weight D. both a and b

Latest Educational News Stories

Pakistan's Largest Database of Colleges and Universities

BS Programs

University Past Papers

University Results

Exam Results 2024

Study Abroad Programs and Opportunities for Pakistani Students

MDCAT Chemistry Chapter 3 MCQ Test With Answer for (Atomic Structure)

MCQ's Test For MDCAT Chemistry Chapter 3 Atomic Structure Online Test

MDCAT Chemistry Chapter 3 Atomic Structure Online Test

Under which condition CO has the maximum molar volume.

The pressure of gas at constant temperature in a container of 2dm3 is 10 atm what will be its final pressure if it is connected with 10 dm3 container

At higher temperature what is true for gases

An ideal gas expands according to PV=constant. On expansion, the temperature of gas

Theoretically, the temperature at which volume of gas become equal to zero is called

The density of neon will be highest at

Under which condition CO has the maximum molar volume

The number of molecules in 22.4 dm3 of gas at 0°C and 1 atm are

The root mean square velocity of a gas is doubled when the temperature is

Acording to the kinetic theory of gases

At higher temperature isotherm of Boyle's law moves away from both axis, is due to increase in:

An ideal gas, obeying Kinetic theory of gases cannot be liquified, because

If volume of an ideal gas at 0C° 536cm3, what is volume at 1°C

Which is not true in case of an ideal gas?

.The number of moles in 2.24 dm3 of H2 gas at STP is:

One dm3 of H2 and O2: has different masses but no. of particles are

Which of the statement is applicable for both ideal and real gases molecules?

If a gas expands at constant temperature

If temperature is 73K and volume is 146 cm3 then calculate the value of K=V/T

Gas is enclosed in a container of 20cm3 with the moving piston. According to kinetic theory of gases, what is the effect on freely moving molecules of the gas if temperature is increased from 20°C to 100C.

Prepare Complete Set Wise MDCAT Chemistry Chapter 3 Atomic Structure Online Test MCQs Online With Answers

Set 1

Set 2

Set 3

Topic Test

Top Scorers Of MDCAT Chemistry Chapter 3 Atomic Structure Online Test MCQ`s Test

MCAT Chemistry Chapter 3 Important MCQ's

Test Questions

Is this page helpful?

Share your comments & questions here

altaf