This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Chemistry (Part I) Chapter 2 Structure Of Atom – Quiz 37 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part I) Chapter 2 Structure Of Atom Quiz 37 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of the following would not be reactive? A) Neon with 8 valence electrons. B) Sodium with 1 valence electrons. C) Oxygen with 8 total electrons. D) Boron with 5 total electrons. Show Answer Correct Answer: A) Neon with 8 valence electrons. 2. What is the frequency of green light that has a wavelength of 500 nm? A) $6\times10^{-3}$. B) $6\times10^5$. C) $6\times10^{14}$. D) $6\times10^{-16}$. Show Answer Correct Answer: C) $6\times10^{14}$. 3. The atomic number will always be the same as A) Mass number and number of protons. B) Number of neutrons and protons. C) Number of electrons and protons. D) Number of electrons and neutrons. Show Answer Correct Answer: C) Number of electrons and protons. 4. Carbon 14 has how many protons? A) 6. B) 7. C) 8. D) 9. Show Answer Correct Answer: A) 6. 5. The area of space surrounding the nucleus. A) Proton. B) Isotope. C) Electron cloud. D) Neutron. Show Answer Correct Answer: C) Electron cloud. 6. The (n+l) value of 3p orbital? A) 3. B) 4. C) 5. D) 6. Show Answer Correct Answer: B) 4. 7. An orbital that can never exist according to the quantum description of the atom is A) 6d. B) 3f. C) 3d. D) 8s. Show Answer Correct Answer: B) 3f. 8. Which of the following statements is true about the Lyman and Balmer series? A) The intensity decreases as the frequency increases. B) The converging frequency for both series is the same. C) The line spectra for both series are formed in the visible light range. D) The spacing between the lines increases as the frequency increases. Show Answer Correct Answer: A) The intensity decreases as the frequency increases. 9. Each column in the periodic table, they contain similar properties. A) Period. B) Group. C) Element. D) Atom. Show Answer Correct Answer: B) Group. 10. S, p and d orbitals are present in which shell? A) K. B) L. C) M. D) N. Show Answer Correct Answer: C) M. 11. What does the number Z represent? A) Mass number. B) Atomic number. C) All the above. D) None of the above. Show Answer Correct Answer: B) Atomic number. 12. Subatomic particle that determines the identity of the atom. A) Proton. B) Nucleus. C) Electron. D) Neutron. Show Answer Correct Answer: A) Proton. 13. According to Bohr model, as long as an electrons revolve in a particular Orbit its energy ..... A) Decrease. B) Increase. C) Remains constant. D) Both decrease and increase. Show Answer Correct Answer: C) Remains constant. 14. The orbitals having the same energy are called A) Isotope. B) Isobar. C) Iso orbital. D) Degenerate. Show Answer Correct Answer: D) Degenerate. 15. Which subatomic particle is attracted to the nucleus? A) Proton. B) Neutron. C) Electron. D) None of the above. Show Answer Correct Answer: C) Electron. 16. The Kinetic energy of the electron in an orbit of radius r in hydrogen atom from n= 10 state is A) E2 /r2. B) E2/2r. C) E2/r. D) E2/2r2. Show Answer Correct Answer: B) E2/2r. 17. Abnormal electronic configuration is for following elements A) Hg & Ag. B) Zn & Pt. C) Cu & Pd. D) Cu & Cr. Show Answer Correct Answer: D) Cu & Cr. 18. 15-Identify the wrong sequence of the elements in a group A) Ca, Br, Ba. B) Cu, Au, Ag. C) N, P, As. D) Cl, Br, I. Show Answer Correct Answer: A) Ca, Br, Ba. 19. True or False? Neutrons have a negative charge A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 20. A 50 watt bulb emits monochromatic light of wavelength 400 nm. calculate the number of photons emitted per second by the bulb. A) 2X10$^{20}$ sec$^{-1}$. B) 1X10$^{20}$ sec$^{-1}$. C) 5X10$^{-19}$sec$^{-1}$. D) 1X10$^{-20}$ sec$^{-1}$. Show Answer Correct Answer: B) 1X10$^{20}$ sec$^{-1}$. 21. Which particles are negatively charged and occupy the space outside the nucleus of an atom? A) Atom. B) Mass. C) Proton. D) Electron. Show Answer Correct Answer: D) Electron. 22. The orbital electron has the lowest energy level is A) K shell. B) L shell. C) M shell. D) N shell. Show Answer Correct Answer: A) K shell. 23. Which of the three particles has the smallest mass? A) Proton. B) Neutron. C) Electron. D) None of the above. Show Answer Correct Answer: C) Electron. 24. Radial nodes present in 3s and 2p-orbitals are respectively A) 0, 2. B) 2, 0. C) 2, 1. D) 1, 2. Show Answer Correct Answer: B) 2, 0. 25. The ..... of an element equals the number of protons in an atom of that element A) Mass number. B) Atomic weight. C) Atomic number. D) Isotopes. Show Answer Correct Answer: C) Atomic number. ← PreviousNext →Related QuizzesClass 11 Chemistry (Part I) Chapter 2 Structure Of Atom Quiz 1Class 11 Chemistry (Part I) Chapter 2 Structure Of Atom Quiz 2Class 11 Chemistry (Part I) Chapter 2 Structure Of Atom Quiz 3Class 11 Chemistry (Part I) Chapter 2 Structure Of Atom Quiz 4Class 11 Chemistry (Part I) Chapter 2 Structure Of Atom Quiz 5Class 11 Chemistry (Part I) Chapter 2 Structure Of Atom Quiz 6Class 11 Chemistry (Part I) Chapter 2 Structure Of Atom Quiz 7Class 11 Chemistry (Part I) Chapter 2 Structure Of Atom Quiz 8Class 11 Chemistry (Part I) Chapter 2 Structure Of Atom Quiz 9Class 11 Chemistry (Part I) Chapter 2 Structure Of Atom Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books