Select Chapter Topics:
Q. No.Given below are two statement:
Statement I:
The energy of the \(\mathrm{He}^{+}\) ion in \(n=2\) state is same as the energy of H atom in \(n=1\) state
Statement II:
It is possible to determine simultaneously the exact position and exact momentum of an electron in \(\mathrm{H}\) atom.
In the light of the above Statements,, choose the correct answer from the options given below:
1. Both Statement I and Statement II are true
2. Both Statement I and Statement II are false
3. Statement I is true but Statement II is false
4. Statement I is false but Statement II is true
Subtopic: Bohr's Theory | Heisenberg Uncertainty Principle |
68%
From NCERT
NEET - 2024
Please attempt this question first.
Hints
Please attempt this question first.
Isotope of an element contains \(19.23 \%\) more neutrons as compared to protons. The correct element along with its mass number is:
(Given Atomic number \(\mathrm{Fe: 26, Co: 27}\) )
1. \(\mathrm {^{56}Fe }\)
2. \({ }^{57} \mathrm{Fe}\)
3. \({ }^{57} \mathrm{Co}\)
4. \({ }^{60} \mathrm{Co}\)
(Given Atomic number \(\mathrm{Fe: 26, Co: 27}\) )
1. \(\mathrm {^{56}Fe }\)
2. \({ }^{57} \mathrm{Fe}\)
3. \({ }^{57} \mathrm{Co}\)
4. \({ }^{60} \mathrm{Co}\)
Subtopic: Number of Electron, Proton & Neutron |
55%
From NCERT
NEET - 2024
Please attempt this question first.
Hints
Please attempt this question first.
Match List I with List II.
Choose the correct answer from the options given below :
1. A-III, B-IV, C-I, D-II
2. A-III, B-IV, C-II, D-I
3. A-II, B-I, C-IV, D-III
4. A-I, B-III, C-II, D-IV
| List I Quantum Number |
List II Information provided |
||
| A. | ml | I. | shape of orbital |
| B. | ms | II. | size of orbital |
| C. | l | III. | orientation of orbital |
| D. | n | IV. | orientation of spin of electron |
1. A-III, B-IV, C-I, D-II
2. A-III, B-IV, C-II, D-I
3. A-II, B-I, C-IV, D-III
4. A-I, B-III, C-II, D-IV
Subtopic: Quantum Numbers & Schrodinger Wave Equation |
75%
From NCERT
NEET - 2024
Please attempt this question first.
Hints
Please attempt this question first.
The energy of electron in the ground state \((\text{n}=1)\) for \(\text{He}^+\) ion is-\(\text{x}J,\) then that for an electron in \(\text{n}=2\) state for \(\text{Be}^{3+}\) ion in \(\text{J}\) is :
1. \(-\frac x9\)
2. \(-4x\)
3. \(-\frac 49x\)
4. \(-x\)
1. \(-\frac x9\)
2. \(-4x\)
3. \(-\frac 49x\)
4. \(-x\)
Subtopic: Bohr's Theory |
65%
From NCERT
NEET - 2024
Please attempt this question first.
Hints
Please attempt this question first.
Given below are two statements:
In light of the above statements, choose the correct answer from the options given below:
1. Statement I is True but Statement II is False.
2. Statement I is False but Statement II is True.
3. Both Statement I and Statement II are True.
4. Both Statement I and Statement II are False.
| I: | The value of wave function, \(\Psi\) depends upon the coordinates of the electron in the atom |
| II: | The probability of finding an electron at a point within an atom is proportional to the orbital wave function |
In light of the above statements, choose the correct answer from the options given below:
1. Statement I is True but Statement II is False.
2. Statement I is False but Statement II is True.
3. Both Statement I and Statement II are True.
4. Both Statement I and Statement II are False.
Subtopic: Quantum Numbers & Schrodinger Wave Equation |
From NCERT
NEET - 2023
Please attempt this question first.
Hints
Please attempt this question first.
Incorrect set of quantum numbers from the following is :
1. n=4,l=3, m1 =-3, -2, -1, 0, +1, +2, +3, ms=-1/2
2. n=5, l=2, m1 =-2, -1, +1, +2, ms=+1/2
3. n=4, l=2, m1 = -2, -1, 0, +1, +2, ms=-1/2
4. n=5,l=3, m1 =-3, -2, -1, 0, +1, +2, +3, ms=+1/2
1. n=4,l=3, m1 =-3, -2, -1, 0, +1, +2, +3, ms=-1/2
2. n=5, l=2, m1 =-2, -1, +1, +2, ms=+1/2
3. n=4, l=2, m1 = -2, -1, 0, +1, +2, ms=-1/2
4. n=5,l=3, m1 =-3, -2, -1, 0, +1, +2, +3, ms=+1/2
Subtopic: Quantum Numbers & Schrodinger Wave Equation |
80%
From NCERT
NEET - 2023
Please attempt this question first.
Hints
Please attempt this question first.
The relation between \(n_m \) (\(n_m \) = number of permissible values of magnetic quantum number (ml) for a given value of azimuthal quantum number (l) is:
1. \(n_m = l+2\)
2. \(l = {n_m -1 \over 2}\)
3. \(l= 2n_m +1\)
4. \(n_m = 2l^2 + 1 \)
1. \(n_m = l+2\)
2. \(l = {n_m -1 \over 2}\)
3. \(l= 2n_m +1\)
4. \(n_m = 2l^2 + 1 \)
Subtopic: Shell & Subshell |
67%
From NCERT
NEET - 2023
Please attempt this question first.
Hints
Please attempt this question first.
When electromagnetic radiation of wavelength 300 nm falls on the surface of a metal, electrons are emitted with the kinetic energy of 1.68 × 105 J mol–1. The minimum energy needed to remove one mole of electron from the metal is:
(h = 6.626 × 10–34 Js, c = 3 × 108 ms–1, NA = 6.022 × 1023 mol–1)
1. 2.31 × 106 J mol–1
2. 3.84 × 104 J mol–1
3. 3.84 × 10–19 J mol–1
4. 2.31 × 105 J mol–1
(h = 6.626 × 10–34 Js, c = 3 × 108 ms–1, NA = 6.022 × 1023 mol–1)
1. 2.31 × 106 J mol–1
2. 3.84 × 104 J mol–1
3. 3.84 × 10–19 J mol–1
4. 2.31 × 105 J mol–1
Subtopic: Photo Electric Effect |
From NCERT
NEET - 2022
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Match List-I with List-II:
Choose the correct answer from the options given below:
| List-I (quantum number) |
List-II (Orbital) |
||
| (A) | n = 2, \(\ell\) = 1 | (I) | 2s |
| (B) | n = 3, \(\ell\) = 2 | (II) | 3s |
| (C) | n = 3, \(\ell\) = 0 | (III) | 2p |
| (D) | n = 2, \(\ell\) = 0 | (IV) | 3d |
Choose the correct answer from the options given below:
| (A) | (B) | (C) | (D) | |
| 1. | (III) | (IV) | (I) | (II) |
| 2. | (IV) | (III) | (I) | (II) |
| 3. | (IV) | (III) | (II) | (I) |
| 4. | (III) | (IV) | (II) | (I) |
Subtopic: Shell & Subshell |
81%
From NCERT
NEET - 2022
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
A monochromatic infrared range finder of power 1milli watt emits photons with wavelength 1000 nm in 0.1 second. The number of photons emitted in 0.1 second is:
(Given: h = \(6.626 \times 10^{-34} J~s\) , c = \(3 \times 10^8 m~s^{-1}, \) Avogadro number = \(6.022 \times 10^{23}\))
1. \(30 \times 10^{37}\)
2. \(5 \times 10^{14} \)
3. \(30 \times 10^{34} \)
4. \(5 \times 10^{11} \)
Subtopic: Electromagnetic Radiation |
71%
From NCERT
NEET - 2022
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Select Chapter Topics:
© 2024 GoodEd Technologies Pvt. Ltd.