NEET Chemistry: Structure of Atom — Free Practice Set 8 (10 MCQs)

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About this NEET MCQ Test

This page provides a free online MCQ test for NEET Chemistry preparation, focusing specifically on the chapter Structure of Atom. It contains 10 carefully selected multiple-choice questions (MCQs) designed to test your conceptual understanding and exam readiness.

0

Easy

10

Medium

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Hard

Key concepts covered in this specific test include Electron, Hydrogen, Possible, Describe, Ionization, and Required.

Taking these timed MCQ tests helps you simulate the real NEET exam environment. Detailed step-by-step explanations are provided for every question to help you learn from your mistakes and strengthen your fundamentals.

Preview of Questions in this Test

Q1. An electron in a hydrogen atom is in the \( n = 4 \) state. How many possible sets of quantum numbers (\( n, l, m_l, m_s \)) can describe its state?

A. 16
B. 18
C. 32
D. 8

Q2. The ionization energy of \( \text{He}^+ \) is \( 54.4 \, \text{eV} \). What is the energy required to excite an electron from \( n = 2 \) to \( n = 5 \)? (\( 1 \, \text{eV} = 1.6 \times 10^{-19} \, \text{J} \))

A. \( 13.6 \, \text{eV} \)
B. \( 3.4 \, \text{eV} \)
C. \( 11.424 \, \text{eV} \)
D. \( 6.8 \, \text{eV} \)

Q3. A proton has a de Broglie wavelength of \( 2.0 \times 10^{-12} \, \text{m} \). What is its kinetic energy? (\( h = 6.626 \times 10^{-34} \, \text{J s} \), \( m_p = 1.67 \times 10^{-27} \, \text{kg} \))

A. \( 1.65 \times 10^{-17} \, \text{J} \)
B. \( 6.58 \times 10^{-17} \, \text{J} \)
C. \( 2.41 \times 10^{-17} \, \text{J} \)
D. \( 3.29 \times 10^{-17} \, \text{J} \)

Q4. A neutron and a proton have the same de Broglie wavelength. What is the ratio of their velocities? (\( m_p = 1.67 \times 10^{-27} \, \text{kg} \), \( m_n = 1.67 \times 10^{-27} \, \text{kg} \))

A. \( 0.5 \)
B. \( 1 \)
C. \( 2 \)
D. \( 1836 \)

Q5. The ionization energy of a hydrogen atom is \( 13.6 \, \text{eV} \). What is the ionization energy of \( \text{H}^- \) ion from its ground state if its electron is in \( n = 2 \)?

A. \( 3.4 \, \text{eV} \)
B. \( 13.6 \, \text{eV} \)
C. \( 6.8 \, \text{eV} \)
D. \( 1.51 \, \text{eV} \)

+ 5 more questions in the actual test

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NEET Chemistry — Structure of Atom

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Preview of Questions in this Test

Q1. An electron in a hydrogen atom is in the \( n = 4 \) state. How many possible sets of quantum numbers (\( n, l, m_l, m_s \)) can describe its state?

Q2. The ionization energy of \( \text{He}^+ \) is \( 54.4 \, \text{eV} \). What is the energy required to excite an electron from \( n = 2 \) to \( n = 5 \)? (\( 1 \, \text{eV} = 1.6 \times 10^{-19} \, \text{J} \))

Q3. A proton has a de Broglie wavelength of \( 2.0 \times 10^{-12} \, \text{m} \). What is its kinetic energy? (\( h = 6.626 \times 10^{-34} \, \text{J s} \), \( m_p = 1.67 \times 10^{-27} \, \text{kg} \))

Q4. A neutron and a proton have the same de Broglie wavelength. What is the ratio of their velocities? (\( m_p = 1.67 \times 10^{-27} \, \text{kg} \), \( m_n = 1.67 \times 10^{-27} \, \text{kg} \))

Q5. The ionization energy of a hydrogen atom is \( 13.6 \, \text{eV} \). What is the ionization energy of \( \text{H}^- \) ion from its ground state if its electron is in \( n = 2 \)?

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NEET Chemistry: Structure of Atom — MCQ Test 8

Q6. The maximum number of electrons in an atom with \( n = 3 \) is:

Q7. The wavelength of the second line in the Brackett series of a hydrogen atom is: (\( R_H = 1.097 \times 10^7 \, \text{m}^{-1} \))

Q8. The number of spectral lines produced when an electron falls from \( n = 7 \) to \( n = 3 \) in a hydrogen atom is:

Q9. A photon of energy \( 6.626 \times 10^{-19} \, \text{J} \) strikes a metal with a work function of \( 4.0 \times 10^{-19} \, \text{J} \). What is the velocity of the ejected electron? (\( m_e = 9.1 \times 10^{-31} \, \text{kg} \))

Q10. The de Broglie wavelength of a particle is \( 6.626 \times 10^{-10} \, \text{m} \). If its mass is \( 1.0 \times 10^{-30} \, \text{kg} \), what is its velocity? (\( h = 6.626 \times 10^{-34} \, \text{J s} \))

NEET Chemistry — Structure of Atom

Accelerate Your NEET Preparation

Question Bank

Practice Tests

NEET PYQs

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About this NEET MCQ Test

Preview of Questions in this Test

Q1. An electron in a hydrogen atom is in the \( n = 4 \) state. How many possible sets of quantum numbers (\( n, l, m_l, m_s \)) can describe its state?

Q2. The ionization energy of \( \text{He}^+ \) is \( 54.4 \, \text{eV} \). What is the energy required to excite an electron from \( n = 2 \) to \( n = 5 \)? (\( 1 \, \text{eV} = 1.6 \times 10^{-19} \, \text{J} \))

Q3. A proton has a de Broglie wavelength of \( 2.0 \times 10^{-12} \, \text{m} \). What is its kinetic energy? (\( h = 6.626 \times 10^{-34} \, \text{J s} \), \( m_p = 1.67 \times 10^{-27} \, \text{kg} \))

Q4. A neutron and a proton have the same de Broglie wavelength. What is the ratio of their velocities? (\( m_p = 1.67 \times 10^{-27} \, \text{kg} \), \( m_n = 1.67 \times 10^{-27} \, \text{kg} \))

Q5. The ionization energy of a hydrogen atom is \( 13.6 \, \text{eV} \). What is the ionization energy of \( \text{H}^- \) ion from its ground state if its electron is in \( n = 2 \)?

Frequently Asked Questions

Is this practice set completely free?

Are these questions relevant for the latest NEET syllabus?

Can I view the solutions after the test?

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