This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Chemistry (Part I) Chapter 2 Structure Of Atom – Quiz 10 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part I) Chapter 2 Structure Of Atom Quiz 10 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Found in the nucleus of the atom A) Electrons only. B) Protons only. C) Neutrons and protons. D) Neutrons and electrons. Show Answer Correct Answer: C) Neutrons and protons. 2. Atomic mass is refers to A) Proton number. B) Combination of proton and electron. C) Combination of proton and neutron. D) None of the above. Show Answer Correct Answer: C) Combination of proton and neutron. 3. What is the ratio of energies of an electron is 1st orbits of He$^{+}$ and H? A) 1:1. B) 1:2. C) 2:1. D) 4:1. Show Answer Correct Answer: D) 4:1. 4. Which of the following elements has a full outer electron shell? A) Helium. B) Lithium. C) Oxygen. D) Carbon. Show Answer Correct Answer: A) Helium. 5. Particles move fastest in a A) Solid. B) Liquid. C) Gas. D) Slime. Show Answer Correct Answer: C) Gas. 6. The correct set of four quantum numbers for the balance electron of rubidium atom(z=37) is A) 5, 1, 1, +1/2. B) 6, 0, 0, +1/2. C) 5, 0, 0, +1/2. D) 5, 1, 0, -1/2. Show Answer Correct Answer: C) 5, 0, 0, +1/2. 7. If an element has 6 shells, then what will be the maximum number of electrons in the second-last shell? A) 50. B) 32. C) 8. D) 36. Show Answer Correct Answer: A) 50. 8. The atomic mass is ..... ? A) Average mass of an atom of an element. B) Number of Electrons. C) Number of Protons. D) Number of Neutrons. Show Answer Correct Answer: A) Average mass of an atom of an element. 9. Which one of the following statements is true of the hydrogen spectrum? A) Each series consists of the same number of lines. B) The last line in each series has the shortest wavelength. C) The lines converge as the wavelength increases. D) The lines are all coloured. Show Answer Correct Answer: B) The last line in each series has the shortest wavelength. 10. Which model of the atom proposed that atoms were positive spheres with negative electrons in them? A) Heliocentric Model. B) Solid Sphere Model. C) Plum Pudding Model. D) Planetary Model. Show Answer Correct Answer: C) Plum Pudding Model. 11. An atom having atomic mass number 13 has 7 neutrons. What is the atomic number of the atom? A) 13. B) 7. C) 6. D) 12. Show Answer Correct Answer: C) 6. 12. The symbol for the element POTASSIUM is ..... A) K. B) P. C) Po. D) Pt. Show Answer Correct Answer: A) K. 13. The principal quantum number describes A) Shape of orbital. B) Size of the orbital. C) Spin of electron. D) Energy of each orbital. Show Answer Correct Answer: D) Energy of each orbital. 14. H is the symbol for ..... A) Helium. B) Hydrogen. C) Holmium. D) Mercury. Show Answer Correct Answer: B) Hydrogen. 15. A(n) is a particle that has mass but no charge. A) Electron. B) Neutron. C) Plasma. D) Proton. Show Answer Correct Answer: B) Neutron. 16. State the number of radial nodes present in 3p subshell A) 1. B) 2. C) 3. D) 4. Show Answer Correct Answer: A) 1. 17. Who performed experiments to prove the presence of protons in the nucleus? A) J J Thomson. B) Ernest Rutherford. C) John Dalton. D) James Chadwick. Show Answer Correct Answer: B) Ernest Rutherford. 18. Calculate the wave number for the longest wavelength transition in Balmer series of Hydrogen atom A) 27425cm$^{-1}$. B) 15232.9cm$^{-1}$. C) 109700cm$^{-1}$. D) Not enough information given. Show Answer Correct Answer: B) 15232.9cm$^{-1}$. 19. 1) When an electron jumps higher energy orbit to lower energy orbit, the difference in the energies in the two orbits is radiated as quantum (photon) of ..... A) $E=mc^2$. B) $E=\frac{h}{\nu}$. C) $E=\frac{hc}{\lambda}$. D) $E=\frac{\lambda}{hc}$. Show Answer Correct Answer: C) $E=\frac{hc}{\lambda}$. 20. The first electron shell can old how many electrons? A) 8. B) 2. C) 6. D) 4. Show Answer Correct Answer: B) 2. 21. The total number of orbitals in a shell with principal quantum number 'n' is A) 2n. B) 2n$^{2}$. C) N$^{2}$. D) N+1. Show Answer Correct Answer: C) N$^{2}$. 22. What is the mass number and name of an element with 8 protons and 8 neutrons? A) 16-Carbon. B) 16-Oxygen. C) 24-Oxygen. D) 8-Neon. Show Answer Correct Answer: B) 16-Oxygen. 23. Discovered the nucleus of the atom A) Dalton. B) Thomson. C) Rutherford. D) Bohr. Show Answer Correct Answer: C) Rutherford. 24. Which of the following statements is true about the periodic table? A) Elements are arranged by increasing atomic mass. B) Elements are arranged by increasing atomic number. C) Elements are arranged by decreasing atomic number. D) Elements are arranged randomly. Show Answer Correct Answer: B) Elements are arranged by increasing atomic number. 25. THE EXPERIMENT THAT LEAD TO THE DISCOVERY OF ATOMIC NUCLEUS A) CHRISTMAS PUDDING MODEL. B) WATER MELON MODEL. C) ALPHA PARTICLE SCATTERING EXPERIMENT. D) DISCHARGE TUBE EXPERIMENT. Show Answer Correct Answer: C) ALPHA PARTICLE SCATTERING EXPERIMENT. ← 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 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books