All Courses
Get the App Signup / Login
Sign in Open App
NEET Exam  >  NEET Tests  >  Chemistry Class 11  >  31 Year NEET Previous Year Questions: Structure of Atom - 1 - NEET MCQ

31 Year NEET Previous Year Questions: Structure of Atom - 1 - NEET MCQ


Test Description

30 Questions MCQ Test Chemistry Class 11 - 31 Year NEET Previous Year Questions: Structure of Atom - 1

31 Year NEET Previous Year Questions: Structure of Atom - 1 for NEET 2024 is part of Chemistry Class 11 preparation. The 31 Year NEET Previous Year Questions: Structure of Atom - 1 questions and answers have been prepared according to the NEET exam syllabus.The 31 Year NEET Previous Year Questions: Structure of Atom - 1 MCQs are made for NEET 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for 31 Year NEET Previous Year Questions: Structure of Atom - 1 below.
Solutions of 31 Year NEET Previous Year Questions: Structure of Atom - 1 questions in English are available as part of our Chemistry Class 11 for NEET & 31 Year NEET Previous Year Questions: Structure of Atom - 1 solutions in Hindi for Chemistry Class 11 course. Download more important topics, notes, lectures and mock test series for NEET Exam by signing up for free. Attempt 31 Year NEET Previous Year Questions: Structure of Atom - 1 | 31 questions in 62 minutes | Mock test for NEET preparation | Free important questions MCQ to study Chemistry Class 11 for NEET Exam | Download free PDF with solutions
31 Year NEET Previous Year Questions: Structure of Atom - 1 - Question 1
Save

The following quantum numbers are possible for how many orbital (s) n = 3, l = 2, m = +2 ? [2001]

Detailed Solution for 31 Year NEET Previous Year Questions: Structure of Atom - 1 - Question 1

Correct Answer is A.

31 Year NEET Previous Year Questions: Structure of Atom - 1 - Question 2
Save

Which of the following is isoelectronic? [2002]

Detailed Solution for 31 Year NEET Previous Year Questions: Structure of Atom - 1 - Question 2

Both CN– and CO have 14 electrons

1 Crore+ students have signed up on EduRev. Have you? Download the App
31 Year NEET Previous Year Questions: Structure of Atom - 1 - Question 3
Save

In hydrogen atom, energy of first excited state is –3.4 eV. Find out KE of the same orbit of Hydrogen atom [2002]

Detailed Solution for 31 Year NEET Previous Year Questions: Structure of Atom - 1 - Question 3

Suppose the nucleus of hydrogen atom have charge of one proton i.e. The electron revolves in a radius of r around it. Therefore the centripital force is supplied by electrostatic force of attraction i.e.

now total energy (En) = K.E + P.E in first excited state

31 Year NEET Previous Year Questions: Structure of Atom - 1 - Question 4
Save

The value of Planck's constant is 6.63 × 10–34 Js.The velocity of light is 3.0 × 108 m s–1. Which value is closest to the wavelength in nanometers of a quantum of light with frequency of 8 × 1015 s–1 ? [2003]
Detailed Solution for 31 Year NEET Previous Year Questions: Structure of Atom - 1 - Question 4

In nanometer λ = 3.75× 10 which is closest to 4 × 101

31 Year NEET Previous Year Questions: Structure of Atom - 1 - Question 5
Save

The ions O2–, F–, Na+, Mg2+ and Al3+ are isoelectronic. Their ionic radii show [2003]
Detailed Solution for 31 Year NEET Previous Year Questions: Structure of Atom - 1 - Question 5

Amongst isoelectronic species, ionic radii of anion is more than that of cations. Further size of anion increase with increase in-ve change and size of cation decrease with increase in + ve charge. Hence ionic radii decreases from O– to Al+++.

31 Year NEET Previous Year Questions: Structure of Atom - 1 - Question 6
Save

The frequency of radiation emitted when the electron falls from n = 4 to n = 1 in a hydrogen atom will be (Given ionization energy of H=2.18 ×10–18J atom–1and h = 6.625 × 10–34 J s ) [2004]
Detailed Solution for 31 Year NEET Previous Year Questions: Structure of Atom - 1 - Question 6

31 Year NEET Previous Year Questions: Structure of Atom - 1 - Question 7
Save

The energy of the second Bohr orbit of the hydrogen atom is -328 kJ mol-1; hence the energy of the fourth Bohr orbit would be: [2005]
Detailed Solution for 31 Year NEET Previous Year Questions: Structure of Atom - 1 - Question 7

We know that

Given 

 –82 kJmol–1

31 Year NEET Previous Year Questions: Structure of Atom - 1 - Question 8
Save

Given : The mass of electron is 9.11 × 10–31 kg Plank constant is 6.626 × 10–34 Js, the uncertainty involved in the measurement of velocity within a distance of 0.1 Å is [2006]
Detailed Solution for 31 Year NEET Previous Year Questions: Structure of Atom - 1 - Question 8

We know that  

 5.79 x106 m/sec

31 Year NEET Previous Year Questions: Structure of Atom - 1 - Question 9
Save

The orientation of an atomic orbital is governed by [2006]
Detailed Solution for 31 Year NEET Previous Year Questions: Structure of Atom - 1 - Question 9

Magnetic quantum no. represents the orientation of atomic orbitals in an atom. For example px, py & pz have orientation along X-axis, Y-axis & Z-axis

31 Year NEET Previous Year Questions: Structure of Atom - 1 - Question 10
Save

Consider the following sets of quantum numbers:

Which of the following sets of quantum number is not possible? [2007]
Detailed Solution for 31 Year NEET Previous Year Questions: Structure of Atom - 1 - Question 10

(ii) is not possible for any value of n because l varies from 0 to (n – 1) thus for n = 2, l can be only 0, 1, 2. (iv) is not possible because for l = 0, m = 0. (v) is not possible because for l = 2, m varies from –2 to +2.

31 Year NEET Previous Year Questions: Structure of Atom - 1 - Question 11
Save

If uncertainty in position and momentum are equal, then uncertainty in velocity is : [2008]
Detailed Solution for 31 Year NEET Previous Year Questions: Structure of Atom - 1 - Question 11

We know 

               [∵ Δp= mΔv]

since Δp = Δx (given)

Thus option (a) is the correct option.

31 Year NEET Previous Year Questions: Structure of Atom - 1 - Question 12
Save

The measurement of the electron position if associated with an uncertainty in momentum, which is equal to 1 × 10–18 g cm s– 1 . The uncertainty in electron velocity is? (mass of an electron is 9 × 10– 28 g) 
[2008]
Detailed Solution for 31 Year NEET Previous Year Questions: Structure of Atom - 1 - Question 12

Δp = mΔv Substituting the given values of Δx and m, we get 1×10–18 gcms–1 = 9×10–28g × Δv

i.e. option (a) is correct.

31 Year NEET Previous Year Questions: Structure of Atom - 1 - Question 13
Save

The energy absorbed by each molecule (A2) of a substance is 4.4 × 10–19 J and bond energy per molecule is 4.0 × 10–19 J. The kinetic energy of the molecule per atom will be: [2009]
Detailed Solution for 31 Year NEET Previous Year Questions: Structure of Atom - 1 - Question 13

K.E per atom

31 Year NEET Previous Year Questions: Structure of Atom - 1 - Question 14
Save

Maximum number of electrons in a subshell of an atom is determined by the following: [2009]
Detailed Solution for 31 Year NEET Previous Year Questions: Structure of Atom - 1 - Question 14

The number of sub shell is (2 l + 1). The maximum number of electrons in the sub shell is 2 (2 l + 1) = (4 l + 2)

31 Year NEET Previous Year Questions: Structure of Atom - 1 - Question 15
Save

Wh ich of the followin g is not per missible arrangement of electrons in an atom? [2009]
Detailed Solution for 31 Year NEET Previous Year Questions: Structure of Atom - 1 - Question 15

m = 2 l +1, thus for l  = 2, m = 5, hence values of m will be – 2, –1, 0, + 1, + 2.
Therefore for l = 2, m cannot have the value– 3.

31 Year NEET Previous Year Questions: Structure of Atom - 1 - Question 16
Save

The electronic configuration for oxygen is written as 1s22s22p4. Which rule will this configuration be violating?
31 Year NEET Previous Year Questions: Structure of Atom - 1 - Question 17
Save

Which one of the following species does not exist under normal conditions? [2010]
Detailed Solution for 31 Year NEET Previous Year Questions: Structure of Atom - 1 - Question 17

Bond order of Be2 = 0, hence Be2 cannot exist.

31 Year NEET Previous Year Questions: Structure of Atom - 1 - Question 18
Save

A 0.66 kg ball is moving with a speed of 100 m/s.The associated wavelength will bexh (6.6x10-34 Js) : [2010]
Detailed Solution for 31 Year NEET Previous Year Questions: Structure of Atom - 1 - Question 18

31 Year NEET Previous Year Questions: Structure of Atom - 1 - Question 19
Save

The total number of atomic orbitals in fourth energy level of an atom is : [2011]
Detailed Solution for 31 Year NEET Previous Year Questions: Structure of Atom - 1 - Question 19

Total no. of atomic orbital in a shell = n2.
Given n = 4; Hence number of atomic orbitals in 4th shell will be 16.

31 Year NEET Previous Year Questions: Structure of Atom - 1 - Question 20
Save

Which of the following has the minimum bond length ? [2011]
Detailed Solution for 31 Year NEET Previous Year Questions: Structure of Atom - 1 - Question 20

Since, the bond length decreases as the bond order increases, hence, O2+ have least bond length.

31 Year NEET Previous Year Questions: Structure of Atom - 1 - Question 21
Save

The energies E1 and E2 of two radiations are 25 eV and 50 eV, respectively. The relation between their wavelengths i.e., λ1 and λ2 will be :[2011]
Detailed Solution for 31 Year NEET Previous Year Questions: Structure of Atom - 1 - Question 21

Given E1 = 25eV E2 = 50 eV

31 Year NEET Previous Year Questions: Structure of Atom - 1 - Question 22
Save

If n = 6, the correct sequence for filling of electrons will be : [2011]
Detailed Solution for 31 Year NEET Previous Year Questions: Structure of Atom - 1 - Question 22

ns → (n - 2)f → (n - 1)d → np [n = 6]

31 Year NEET Previous Year Questions: Structure of Atom - 1 - Question 23
Save

According to the Bohr Theory, which of the following transitions in the hydrogen atom will give rise to the least energetic photon ? [2011 M]
Detailed Solution for 31 Year NEET Previous Year Questions: Structure of Atom - 1 - Question 23

Energy of photon obtained from the transition n = 6 to n = 5 will have least energy.

31 Year NEET Previous Year Questions: Structure of Atom - 1 - Question 24
Save

The pairs of species of oxygen and their magnetic behaviours are noted below. Which of the following presents the correct description? [2011 M]
Detailed Solution for 31 Year NEET Previous Year Questions: Structure of Atom - 1 - Question 24

MOT configurations of O2 and O2+ :

Number of unpaired electrons = 2, so paramagnetic.

O2 : (σ1s)2 (σ*1s)2 (σ2s)2 (σ*2s)2 (σ2pz)2

Number of unpaired electrons = 1, so paramagnetic.

31 Year NEET Previous Year Questions: Structure of Atom - 1 - Question 25
Save

Maximum number of electrons in a subshell with : l = 3 and n = 4 is : [2012]
Detailed Solution for 31 Year NEET Previous Year Questions: Structure of Atom - 1 - Question 25

(n = 4, l = 3) ⇒  4f subshell Since, maximum no. of electrons in a subshell = 2(2l + 1)
So, total no. of electron in 4f subshell = 2 (2 × 3 + 1) = 14 electrons.

31 Year NEET Previous Year Questions: Structure of Atom - 1 - Question 26
Save

The correct set of four quantum numbers for the valence electron of rubidium atom (Z = 37) is [2012]
Detailed Solution for 31 Year NEET Previous Year Questions: Structure of Atom - 1 - Question 26

Electronic configuration of  Rb = [Kr] 5s–1 Set of quantum numbers,  n = 5
ℓ = 0, ∴ s orbital  m  =  0, s = + 1/2

31 Year NEET Previous Year Questions: Structure of Atom - 1 - Question 27
Save

The orbital angular momentum of a p-electron is given as : [2012 M]
Detailed Solution for 31 Year NEET Previous Year Questions: Structure of Atom - 1 - Question 27

Orbital angular momentum

For p orbital ℓ = 1

31 Year NEET Previous Year Questions: Structure of Atom - 1 - Question 28
Save

The value of Planck’s constant is 6.63 × 10–34 Js.The speed of light is 3 × 1017 nm s–1.. Which value is closest to the wavelength in nanometer of a quantum of light with frequency of 6 × 1015 s–1? [NEET 2013]
Detailed Solution for 31 Year NEET Previous Year Questions: Structure of Atom - 1 - Question 28

C = νλ

31 Year NEET Previous Year Questions: Structure of Atom - 1 - Question 29
Save

What is the maximum numbers of electrons that can be associated with the following set of quantum numbers? n = 3, l = 1 and m = –1 [NEET 2013]
Detailed Solution for 31 Year NEET Previous Year Questions: Structure of Atom - 1 - Question 29

n = 3 → 3rd shell
l = 1 → p sub shell.
m = – 1 is possible for two electrons present in an orbital.

31 Year NEET Previous Year Questions: Structure of Atom - 1 - Question 30
Save

Based on equation certain conclusions are written. Which of them is not correct ? [NEET 2013]
Detailed Solution for 31 Year NEET Previous Year Questions: Structure of Atom - 1 - Question 30

Energy of an electron at infinite distance from the nucleus is zero. As an electron approaches the nucleus, the electron attraction increases and hence the energy of electron decreases and thus becomes negative. Thus as the value of n decreases, i.e. lower the orbit is, more negative is the energy of the electron in it.

View more questions
127 videos|244 docs|87 tests
Join Course
Information about 31 Year NEET Previous Year Questions: Structure of Atom - 1 Page
In this test you can find the Exam questions for 31 Year NEET Previous Year Questions: Structure of Atom - 1 solved & explained in the simplest way possible. Besides giving Questions and answers for 31 Year NEET Previous Year Questions: Structure of Atom - 1, EduRev gives you an ample number of Online tests for practice

Top Courses for NEET

127 videos|244 docs|87 tests
Join Course
Download as PDF

Top Courses for NEET

Important Questions for 31 Year NEET Previous Year Questions: Structure of Atom - 1

Find all the important questions for 31 Year NEET Previous Year Questions: Structure of Atom - 1 at EduRev.Get fully prepared for 31 Year NEET Previous Year Questions: Structure of Atom - 1 with EduRev's comprehensive question bank and test resources. Our platform offers a diverse range of question papers covering various topics within the 31 Year NEET Previous Year Questions: Structure of Atom - 1 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 31 Year NEET Previous Year Questions: Structure of Atom - 1 resources.

31 Year NEET Previous Year Questions: Structure of Atom - 1 MCQs with Answers

Prepare for the 31 Year NEET Previous Year Questions: Structure of Atom - 1 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 31 Year NEET Previous Year Questions: Structure of Atom - 1 Chemistry Class 11

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 31 Year NEET Previous Year Questions: Structure of Atom - 1 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