ECAT Pre Engineering Chemistry Chapter 5 MCQ Test With Answer

Top Scorers Of ECAT Chemistry Chapter 5 Atomic Structure MCQ`s Test

M

M Umer Arain 03 - Nov - 2024 00 Min 13 Sec 105/120
S

Shazi Ansari 05 - Jun - 2024 01 Min 53 Sec 100/120
R

rubina kousar 04 - Jun - 2024 09 Min 02 Sec 90/120
S

Sarab Ali 01 - Jun - 2024 21 Min 54 Sec 90/120
A

Abdullah Nadeem 01 - Jun - 2024 04 Min 12 Sec 80/120
R

rehan sanaullah 06 - Jun - 2024 05 Min 02 Sec 80/120
A

Abdullah Zubair 21 - Dec - 2024 07 Min 00 Sec 80/120
F

Fatima Tabassum 15 - Jan - 2025 04 Min 08 Sec 75/120
M

Madankalani Kalani 16 - Aug - 2024 19 Min 51 Sec 75/120
K

Khalida Amjad 07 - Nov - 2024 13 Min 56 Sec 65/120
A

affan mirza 03 - Jun - 2024 09 Min 39 Sec 60/120
M

Muhammad Emmad 07 - Jun - 2024 14 Min 12 Sec 60/120
N

Nayab Khan 17 - Aug - 2024 19 Min 35 Sec 60/120
F

Furqan Asif 06 - Mar - 2026 44 Min 40 Sec 56/120
A

Abdul Rafay 17 - Oct - 2024 08 Min 05 Sec 55/120

ECAT Chemistry Chapter 5 Important MCQ's

Sr.#	Question	Answer
1	Their e/m, ratio resembles with that of electrons	A. Alpha rays B. Beta rays C. Gamma rays D. X-rays
2	Rutherford's atomic model suggests the existence of	A. Atom B. Nucleus C. alpha particle D. Measons
3	Splitting of spectral lines when atoms are subjected to strong electron field is called	A. Zeeman effect B. Stark effect C. Photoelectric effect D. Compton effect
4	Which of the following is not isoelectronic?	A. Na⁺ B. Mg²⁺ C. O^2- D. Cl^-
5	The order of frequency of the following radiations unltraviolet, visible, infrared and microwave is	A. Microwave > infrared > visible > ultraviolet B. Visible > ultraviolet > microwave > infrared C. Ultraviolet > visible > infrared > microwave D. Infrared > microwave > ultraviolet > visible
6	Which of the following is not a property of cathode rays	A. They can produce x-rays when they strike a heavy metal anode B. They can cause reduction reaction C. They produce fluorescence in rare earth and minerals D. They comprise neutral particles
7	When the 6d orbital is completed the entering electron goes into	A. 7f B. 7 s C. 7 p D. 7 d
8	Which of the following orbitals have a dumb bell shape?	A. s B. p C. d D. f
9	Energy of electron in an orbit according to Bohr theory is negative due to	A. Repulsion of electrons in the same orb B. At infinity energy is zero ad a traction towards nucleus decreases energy C. Electron has negative charge D. Product of positive nuclear charge and negative charge is negative
10		A. s B. p C. d D. f

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

ECAT Pre Engineering Chemistry Chapter 5 MCQ Test With Answer

MCQ's Test For ECAT Chemistry Chapter 5 Atomic Structure

ECAT Chemistry Chapter 5 Atomic Structure

Which of the following was discovered first:

The radius of first orbit of hydrogen atom

In Millikan method the oil droplet falls under the force of gravity but it moves upward due to

Schrodinger wave equation describes electron completely because

The correct set of quantum numbers (n,l and m) respectively of the unpaired electron of chlorine atom is

Which quantum number is sufficient to describe the electron is hydrogen atom?

The four quantum numbers of the valency electron of potassium are

Quantum number values for 2p orbitals are

The quantum number which describe the orientation of the orbitals is

The divisibility of atom was shown by

An electron has principal quantum number 3. The number of its 1 subshell and 2 orbitals would be respectively

The nature of positive ray depend on:

Number of neutrons in heavy hydrogen atom is

Electrons arranged in orbitals according to the increasing order of their n + l values, this rule is named as

The radius of first orbit of H-atom is

Rutherford's experiment led to the discovery of

The range of visible spectrum is

The de-Brogile wavelength of a particle with mass 1g and velocity 100 m/s is

Balmer's series is in ______ region

The principle quantum number describes

An electron with n = 3 , l = 2 will be in the sub-shell

Pauli's principle is applicable to

Orbitals having same energy are called

Anode is the surface on which probability of finding electron is:

The electron in an atom

Which of the following is not isoelectronic?

Energy of electron in an orbit according to Bohr theory is negative due to

The energy of ionization of an atom is the energy difference between orbital

The number of neutrons in the element 94Be is

The order of frequency of the following radiations unltraviolet, visible, infrared and microwave is

Prepare Complete Set Wise ECAT Chemistry Chapter 5 Atomic Structure MCQs Online With Answers

Set 1

Set 2

Set 3

Set 4

Set 5

Set 6

Topic Test

Top Scorers Of ECAT Chemistry Chapter 5 Atomic Structure MCQ`s Test

ECAT Chemistry Chapter 5 Important MCQ's

Test Questions

Is this page helpful?

The number of neutrons in the element ⁹₄Be is