This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Chemistry (Part I) Chapter 2 Structure Of Atom – Quiz 5 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part I) Chapter 2 Structure Of Atom Quiz 5 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What part of the element determines if it will react with another element? A) The number of neutrons. B) The number of valence electrons. C) The number of protons. D) The overall charge of the atoms. Show Answer Correct Answer: B) The number of valence electrons. 2. Which of the following is formed when lead acetate is reacted with potassium iodide? A) Yellow precipitate. B) Green precipitate. C) Brown precipitate. D) White precipitate. Show Answer Correct Answer: A) Yellow precipitate. 3. Fluorine, chlorine, bromine, iodine, and astatine make up Group 17. Why are these elements grouped together? A) They are all very reactive nonmetals with similar chemical properties. B) They are all nonreactive gases with similar physical properties. C) Their atoms all have eight electrons in their outer energy levels. D) They all have the same atomic number. Show Answer Correct Answer: A) They are all very reactive nonmetals with similar chemical properties. 4. NO OF PROTONS PRESENT IN CHLORIDE ION ARE: A) 17. B) 18. C) 16. D) 20. Show Answer Correct Answer: A) 17. 5. Radial nodes present in 3s orbital are A) 3. B) 1. C) 2. D) 4. Show Answer Correct Answer: C) 2. 6. What is the name of J.J. Thomson's Model of an Atom? A) Jimmy Neutron Model. B) Solar System Model. C) Plum-Pudding Model. D) Quantum mechanical Model. Show Answer Correct Answer: C) Plum-Pudding Model. 7. The magnetic quantum number specifies A) Size of orbitals. B) Shape of orbitals. C) Orientation of orbitals. D) Nuclear Stability. Show Answer Correct Answer: C) Orientation of orbitals. 8. The number of electrons in the M shell of P (Z =15) is: A) 3. B) 5. C) 4. D) 2. Show Answer Correct Answer: B) 5. 9. The energy of an electron in 3$^{rd}$ orbit of hydrogen atom is: A) -1311.8 kJ/mol. B) -82.0 kJ/mol. C) -145.7 kJ/mol. D) -327.9 kJ/mol. Show Answer Correct Answer: C) -145.7 kJ/mol. 10. Which radioisotope is used for the diagnosis of tumor in the body? A) Cobalt-60. B) Iodine-131. C) Strontium-90. D) Phosphorous-30. Show Answer Correct Answer: B) Iodine-131. 11. The particle not present in an ordinary hydrogen atom is: A) Proton. B) Neutron. C) Nucleus. D) Electron. Show Answer Correct Answer: B) Neutron. 12. An electron fro which n=4 has more ..... than an electron for which n=2. A) Spin. B) Particle nature. C) Energy. D) Wave natrue. Show Answer Correct Answer: C) Energy. 13. Atomic models have been improved over the years. Arrange the following atomic models in the order of their chronological order(i) Rutherford's atomic model(ii) Thomson's atomic model(ii) Bohr's atomic mode A) L(a) (i), (ii) and (iii). B) (b) (ii), (iii) and (i). C) (c) (ii), (i) and (iii). D) (d) (iii), (ii) and (i). Show Answer Correct Answer: C) (c) (ii), (i) and (iii). 14. Isotopes have A) Same physical and chemical properties. B) Same physical properties but different chemical properties. C) Same chemical properties but different physical properties. D) Different chemical and physical properties. Show Answer Correct Answer: C) Same chemical properties but different physical properties. 15. Isotopes are elements with a different amount of A) Protons. B) Neutrons. C) Electrons. D) Atoms. Show Answer Correct Answer: B) Neutrons. 16. Whose mass is considered as negligible and its charge is minus one? A) Protons. B) Neutrons. C) Electrons. D) Nucleus. Show Answer Correct Answer: C) Electrons. 17. A student is given two diagrams, a neutral copper atom and a neutral mercury atom. Which statement best describes the difference in the number of electrons for these two atoms? A) Copper has 29 less electrons than mercury. B) Mercury has 51 more electrons than copper. C) Copper has 51 more electrons than mercury. D) Mercury has 29 less electrons than copper. Show Answer Correct Answer: B) Mercury has 51 more electrons than copper. 18. What is the spin quantum number for clockwise spin? A) +1/2. B) -1/2. C) 0. D) +1. Show Answer Correct Answer: A) +1/2. 19. What is a black body? A) Perfect absorber & emitter. B) Good conductor. C) White light. D) Dark body. Show Answer Correct Answer: A) Perfect absorber & emitter. 20. When electromagnetic radiations of wavelength 300 nm falls on surface of sodium, electrons are emitted with a kinetic energy of 1.68 X 10$^{5}$ J/mol. what is the minimum energy needed to remove an electron from sodium. what is the maximum wavelength that will cause a photoelectron to be emitted? A) 2.31 X10$^{5}$J, 517 nm. B) 2.31 X10$^{5}$J, 198.5X10$^{-15}$ nm. C) 3.84 X10$^{-19}$J, 517 nm. D) 3.84 X10$^{-19}$J, 198.5X10$^{-15}$nm. Show Answer Correct Answer: C) 3.84 X10$^{-19}$J, 517 nm. 21. Based on their locations in the periodic table, which element has chemical properties most similar to those of calcium, Ca? A) Beryllium, Be. B) Potassium, K. C) Titanium, Ti. D) Yttrium, Y. Show Answer Correct Answer: A) Beryllium, Be. 22. The isotopes of an element contain: A) Same number of neutrons but different number of protons. B) Same number of neutrons but different number of electrons. C) Different number of protons as well as different number of neutrons. D) Different number of neutrons but same number of protons. Show Answer Correct Answer: D) Different number of neutrons but same number of protons. 23. Rutherford's experiment on scattering of $\alpha$ particles showed for the first time that the atom has A) Nucleus. B) Electron. C) Proton. D) Neutron. Show Answer Correct Answer: A) Nucleus. 24. How many lines can be formed in the ultraviolet range for all the transitions involving the first seven energy levels in the emission spectrum for the hydrogen atom? A) 18. B) 10. C) 7. D) 6. Show Answer Correct Answer: D) 6. 25. Nucleus consist a combination of A) Proton and electron. B) Proton and neutron. C) Electron and neutron. D) None of the above. Show Answer Correct Answer: B) Proton and neutron. ← 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 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 10Class 11 Chemistry (Part I) Chapter 2 Structure Of Atom Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books