This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Chemistry (Part I) Chapter 2 Structure Of Atom – Quiz 7 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part I) Chapter 2 Structure Of Atom Quiz 7 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which series in the hydrogen spectrum lies in the visible region? A) Lyman. B) Balmer. C) Paschen. D) Brackett. Show Answer Correct Answer: B) Balmer. 2. In the ground state, an element has 13 electrons in its M-shell. The element is ..... A) Copper. B) Chromium. C) Nickel. D) Iron. Show Answer Correct Answer: B) Chromium. 3. Shape of d orbital is A) Spherical. B) Single dumble. C) Double dumble. D) None of these. Show Answer Correct Answer: C) Double dumble. 4. Which of the two will be chemically more reactive, Sulphur(S) with atomic number 16 or Chlorine (Cl) with atomic number 17? A) Chlorine. B) Sulphur. C) Both are equally reactive. D) Can't say. Show Answer Correct Answer: A) Chlorine. 5. Which element is represented by the symbol 'Fe'? A) Fluorine. B) Iron. C) Francium. D) Fermium. Show Answer Correct Answer: B) Iron. 6. The ratio of the frequencies of the long wavelength limits of Lyman and Balmer series of hydrogen spectrum is A) 27:5. B) 5:27. C) 4:1. D) 1:4. Show Answer Correct Answer: A) 27:5. 7. Total number of orbitals associated in shell will be calculated by formula ..... A) 2n$^{2}$. B) N$^{2}$. C) N. D) None of the above. Show Answer Correct Answer: B) N$^{2}$. 8. (-l to +l ) is the formula for which Quantum Number A) Principle quantum number. B) Azimuthal quantum number. C) Magnetic Quantum number. D) Spin quantum number. Show Answer Correct Answer: B) Azimuthal quantum number. 9. All the following are basic form of matter, except A) Solid. B) Liquid. C) Gas. D) Chemical. Show Answer Correct Answer: D) Chemical. 10. Which element in the compound Li$_{3}$SB$_{2 }$ would have the most protons in its nucleus? A) Li. B) S. C) B. D) None of the above. Show Answer Correct Answer: B) S. 11. Elements having valency 'one' are: A) Always metals. B) Always non-metals. C) Always metalloids. D) Either metals or non-metals. Show Answer Correct Answer: D) Either metals or non-metals. 12. The smallest particle into which an element can be divided and still be the same substance is called a(n) A) Neutron. B) Electron. C) Atom. D) Nucleus. Show Answer Correct Answer: C) Atom. 13. Atom X and atom Y have similar chemical properties. If the proton number of atom X is 12, what is the likely proton number of atom Y? A) 5. B) 10. C) 14. D) 20. Show Answer Correct Answer: D) 20. 14. The atomic number of an element that has 9 protons, 9 electrons, and 10 neutrons is ..... A) 9. B) 10. C) 19. D) 28. Show Answer Correct Answer: A) 9. 15. Which of the following best describes an ion? A) An atom with a different number of protons. B) An atom with a different number of neutrons. C) An atom with a different number of electrons. D) An atom with a different atomic number. Show Answer Correct Answer: C) An atom with a different number of electrons. 16. What is the center of an atom containing protons and neutrons? A) Nucleus. B) Neutron. C) Proton. D) Electron cloud. Show Answer Correct Answer: A) Nucleus. 17. How many protons are in the element, "Sodium?" A) 23. B) 11. C) 13. D) 14. Show Answer Correct Answer: B) 11. 18. Which subatomic particle has a neutral or no charge? A) Protons. B) Neutrons. C) Electrons. D) All of them are neutral. Show Answer Correct Answer: B) Neutrons. 19. One of the lines in the spectrum of hydrogen atom has a wave number of 7.80 x 10$^{14}$ s$^{-1}$. What is the frequency of this line? (c = 3 x 10$^{8}$ ms$^{-1}$) A) 2.34 x 10$^{14}$ s$^{-1}$. B) 2.34 x 10$^{13}$ s$^{-1}$. C) 3.84 x 10$^{14}$ s$^{-1}$. D) 3.84 x 10$^{13}$ s$^{-1}$. Show Answer Correct Answer: A) 2.34 x 10$^{14}$ s$^{-1}$. 20. Anode rays/ positive rays were discovered by a German scientist in 1886 in a discharge tube; The name of the scientist and the cathode used was: A) Eugene Goldstein, a solid disc placed opposite to anode. B) William Crooke, a perforated disc placed opposite to anode. C) Eugene Goldstein, a perforated disc placed opposite to anode. D) William Crooke, a solid disc placed opposite to anode. Show Answer Correct Answer: C) Eugene Goldstein, a perforated disc placed opposite to anode. 21. True or False:The electron cloud is the lightest part of an atom because it is made up mostly of empty space. A) True. B) False. C) Maybe. D) None of the above. Show Answer Correct Answer: A) True. 22. If an electron jumps from 1st orbital to 3rd orbital, then it will A) Absorb energy. B) Release energy. C) No gain of energy. D) None of these. Show Answer Correct Answer: A) Absorb energy. 23. Atomic number means A) No of electrons or no of protons. B) Just no of protons. C) Just no of electrons. D) None. Show Answer Correct Answer: A) No of electrons or no of protons. 24. A substance made up of atoms of two or more elements that are chemically combined. A) Compound. B) Element. C) Atom. D) Nucleus. Show Answer Correct Answer: A) Compound. 25. Plum pudding model is given by A) Bohr. B) Rutherford. C) J J Thomson. D) E Goldstein. Show Answer Correct Answer: C) J J Thomson. ← 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 8Class 11 Chemistry (Part I) Chapter 2 Structure Of Atom Quiz 9Class 11 Chemistry (Part I) Chapter 2 Structure Of Atom Quiz 10Class 11 Chemistry (Part I) Chapter 2 Structure Of Atom Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books