All Courses
Get the App Signup / Login
Sign in Open App
NEET Exam  >  NEET Tests  >  Test: Quantum Mechanical Model of an Atom - NEET MCQ

Test: Quantum Mechanical Model of an Atom - NEET MCQ


Test Description

15 Questions MCQ Test - Test: Quantum Mechanical Model of an Atom

Test: Quantum Mechanical Model of an Atom for NEET 2024 is part of NEET preparation. The Test: Quantum Mechanical Model of an Atom questions and answers have been prepared according to the NEET exam syllabus.The Test: Quantum Mechanical Model of an Atom MCQs are made for NEET 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Quantum Mechanical Model of an Atom below.
Solutions of Test: Quantum Mechanical Model of an Atom questions in English are available as part of our course for NEET & Test: Quantum Mechanical Model of an Atom solutions in Hindi for NEET course. Download more important topics, notes, lectures and mock test series for NEET Exam by signing up for free. Attempt Test: Quantum Mechanical Model of an Atom | 15 questions in 15 minutes | Mock test for NEET preparation | Free important questions MCQ to study for NEET Exam | Download free PDF with solutions
Test: Quantum Mechanical Model of an Atom - Question 1
Save

Direction (Q. Nos. 1-12) This section contains 12 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONLY ONE option is correct.

Q. 

Radial wave functio ns (R) of different orbitals are plotted. Which is/are correct graphs?

Detailed Solution for Test: Quantum Mechanical Model of an Atom - Question 1

For 1s-orbital radial wave function (Ft) is maximum at r - 0, and falls rapidly as r increases thus, (a) correct.
For2s-orbital, radial wave function (R) is maximum at (r = 0), falls to zero and further decreases with r. There appears radial nodes. Thus (b) correct.
For2p-orbital, radial wave function is zero at r = 0, reaches maximum value (at r = a0) and then falls thus (c) is correct.

Test: Quantum Mechanical Model of an Atom - Question 2
Save

For 2s-orbital electron, radial probability density R2 as function of r (distance) is given by

Detailed Solution for Test: Quantum Mechanical Model of an Atom - Question 2

Correct Answer : b

Explanation : (a) It represents R2 vs r for 1s

(b) It represents R2 vs r for2s

(c) It represents R2 vs r for 2p

1 Crore+ students have signed up on EduRev. Have you? Download the App
Test: Quantum Mechanical Model of an Atom - Question 3
Save

For an electron in 2p-orbital, radial probability function 4πr2R2 as a function of r is given by

Detailed Solution for Test: Quantum Mechanical Model of an Atom - Question 3

(a) Describes radial wave function as a function of r for 1s
(b) Describes radial probability function as a function of r for 2s
(c) Describes radial wave function as a function r for 2s
(d) Describes radial probability function as a function of r for 2p

Test: Quantum Mechanical Model of an Atom - Question 4
Save

C onsider the following figures A and B indicating distribution of charge density (electron probability ) with distance r

Select the correct statement(s). 
Detailed Solution for Test: Quantum Mechanical Model of an Atom - Question 4

in case of 1s, falls as r increases thus, (A) is for 1s.
In case of 2s, is maximum in the vicinity o f the nucleus, falls to zero giving spherical nodes and then rises to second highest value. Thus, (6) is for2s

Test: Quantum Mechanical Model of an Atom - Question 5
Save

Select the correct statement(s).
Detailed Solution for Test: Quantum Mechanical Model of an Atom - Question 5

 Thus, is d e pendent on r true


(b) and | | are dependent on r, θ and  : true
(c) Angular wave function is determined by /land m, and not by n: true

Test: Quantum Mechanical Model of an Atom - Question 6
Save

Which orbital gives an electron, a greater probability being found close to the nucleus?
Detailed Solution for Test: Quantum Mechanical Model of an Atom - Question 6

3s is spherically symmetrical and its electron density is maximum at the nucleus. It decreases with r.

Test: Quantum Mechanical Model of an Atom - Question 7
Save

Hamiltonian operator is the sum of two energy operators. These are
Detailed Solution for Test: Quantum Mechanical Model of an Atom - Question 7

H = T + V


Test: Quantum Mechanical Model of an Atom - Question 8
Save

Angular nodes in 4s- suborbit is equal to radial nodes in
Detailed Solution for Test: Quantum Mechanical Model of an Atom - Question 8

Angular nodes in 4s = 0

Test: Quantum Mechanical Model of an Atom - Question 9
Save

at any point is proportional to
Detailed Solution for Test: Quantum Mechanical Model of an Atom - Question 9

Radial probability density = 4πr2 of find in g the electron within the volume of a very thin spherical shell at a distance r from nucleus.

Test: Quantum Mechanical Model of an Atom - Question 10
Save

There is formation of in all five nodes (including terminal nodes) in a string of 12 cm. Thus, wavelength of the waves formed is 
Detailed Solution for Test: Quantum Mechanical Model of an Atom - Question 10

For n nodes in a string

Test: Quantum Mechanical Model of an Atom - Question 11
Save

For x -axis , wave function () can be written as

Thus, Schrodinger wave equation along x-axis can be written as : 
Detailed Solution for Test: Quantum Mechanical Model of an Atom - Question 11



Test: Quantum Mechanical Model of an Atom - Question 12
Save

The Schrodinger wave equation for H-atom is 

where, a0 is Bohr’s radius. If radial node in 2s is at distance r0, then
Detailed Solution for Test: Quantum Mechanical Model of an Atom - Question 12



*Multiple options can be correct
Test: Quantum Mechanical Model of an Atom - Question 13
Save

Direction (Q. Nos. 13-15) This section contains 3 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONE or  MORE THANT ONE  is correct.

Q.  Which of the following properties can be described by wave function ?
Detailed Solution for Test: Quantum Mechanical Model of an Atom - Question 13

The wave function describ es properties of the orbital and the electron that occupies the orbital
(a) Type of orbital is described : true
(b) Energy of electron : true
(c) Shape of the orbital: true
(d) Probability: true

*Multiple options can be correct
Test: Quantum Mechanical Model of an Atom - Question 14
Save

As compared to 1s electron of H-atom in ground state, which of the following properties appear(s) in the radial probability density of 2s electron of H-atom in first excited state?
Detailed Solution for Test: Quantum Mechanical Model of an Atom - Question 14

For2s-electron of H-atom (first excited state)

For 1s-electron of H-atom in ground state

At point Ar = a0 r at point Br > a0
(a) True (b) True (c) True (d) True

*Multiple options can be correct
Test: Quantum Mechanical Model of an Atom - Question 15
Save

Radial probability density in the occupied orbital of a hydrogen atom in the ground state (1s) is given below
Detailed Solution for Test: Quantum Mechanical Model of an Atom - Question 15

Radial probability increases as r increase reaches a maximum value when r = a0 (Bohr’s radius) and then falls. When radial probability is very small.
Thus, (a) and (c) are true.

Information about Test: Quantum Mechanical Model of an Atom Page
In this test you can find the Exam questions for Test: Quantum Mechanical Model of an Atom solved & explained in the simplest way possible. Besides giving Questions and answers for Test: Quantum Mechanical Model of an Atom, EduRev gives you an ample number of Online tests for practice

Top Courses for NEET

Download as PDF

Top Courses for NEET

Important Questions for Quantum Mechanical Model of an Atom

Find all the important questions for Quantum Mechanical Model of an Atom at EduRev.Get fully prepared for Quantum Mechanical Model of an Atom with EduRev's comprehensive question bank and test resources. Our platform offers a diverse range of question papers covering various topics within the Quantum Mechanical Model of an Atom syllabus. Whether you need to review specific subjects or assess your overall readiness, EduRev has you covered. The questions are designed to challenge you and help you gain confidence in tackling the actual exam. Maximize your chances of success by utilizing EduRev's extensive collection of Quantum Mechanical Model of an Atom resources.

Quantum Mechanical Model of an Atom MCQs with Answers

Prepare for the Quantum Mechanical Model of an Atom within the NEET exam with comprehensive MCQs and answers at EduRev. Our platform offers a wide range of practice papers, question papers, and mock tests to familiarize you with the exam pattern and syllabus. Access the best books, study materials, and notes curated by toppers to enhance your preparation. Stay updated with the exam date and receive expert preparation tips and paper analysis. Visit EduRev's official website today and access a wealth of videos and coaching resources to excel in your exam.

Online Tests for Quantum Mechanical Model of an Atom

Practice with a wide array of question papers that follow the exam pattern and syllabus. Our platform offers a user-friendly interface, allowing you to track your progress and identify areas for improvement. Access detailed solutions and explanations for each test to enhance your understanding of concepts. With EduRev's Online Tests, you can build confidence, boost your performance, and ace Quantum Mechanical Model of an Atom with ease. Join thousands of successful students who have benefited from our trusted online resources.
© EduRev
Education Revolution
Signup to see your scores go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup