This quiz works best with JavaScript enabled. Home > Class 10 > Class 10 Science Chapter 5 Periodic Classification Of Elements – Quiz 6 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 10 Science Chapter 5 Periodic Classification Of Elements Quiz 6 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Atoms with similar properties are most likely located ..... A) In the same period. B) In the same group. C) In different periods. D) To the right and left of each other. Show Answer Correct Answer: B) In the same group. 2. Which of the following does not form a part of Dobereiner's Triads? A) Ca. B) Sr. C) Ba. D) Mg. Show Answer Correct Answer: D) Mg. 3. Chemical formula of rust is ..... A) Ugly.xh $ _ {2} $ o. B) Ugly $ _ {4} $. Xh $ _ {2} $ o. C) Fe$_{2}$O$_{3}$.xH$_{2}$O. D) FeO. Show Answer Correct Answer: C) Fe$_{2}$O$_{3}$.xH$_{2}$O. 4. In the Modern Periodic Table, calcium (atomic number 20) is surrounded by elements with atomic numbers 12, 19, 21 and 38. Which of these have physical and chemical properties resembling calcium? A) Z = 12. B) Z =19. C) Z= 21. D) Z = 38. Show Answer Correct Answer: D) Z = 38. 5. Which of the following is the outermost shell for elements of period 2? A) K shell. B) L shell. C) M shell. D) N shell. Show Answer Correct Answer: B) L shell. 6. The arrangement of electrons in modern periodic table is based on their A) Electronic configuration. B) Atomic mass. C) Valence. D) Atomic number. Show Answer Correct Answer: A) Electronic configuration. 7. The atomic number of 4 elements P, Q, R and S are 6, 8, 14 and 16 respectively. Which one of these is a metalloid A) P. B) Q. C) R. D) S. Show Answer Correct Answer: C) R. 8. The number of periods and groups in theperiodic table are ..... A) 6, 16. B) 7, 17. C) 8, 18. D) 7, 18. Show Answer Correct Answer: D) 7, 18. 9. Which of the following belong to same period?Element A B C D EAtomic No 3 2 14 9 6 A) DEA. B) BCD. C) ABC. D) ADE. Show Answer Correct Answer: D) ADE. 10. Mendeleef classified ..... elements A) 56. B) 63. C) 65. D) 36. Show Answer Correct Answer: B) 63. 11. On moving left to right in a period, in the periodic table, metallic character ..... A) Decrease. B) Increases. C) Remains same. D) First increase, then decreases. Show Answer Correct Answer: A) Decrease. 12. The properties of eka-aluminium predicted by Mendeleev are the same as the properties of later discovered element A) Scandium. B) Germanium. C) Gallium. D) Aluminium. Show Answer Correct Answer: C) Gallium. 13. What is the name of group number 2 A) Transition metals. B) Halogens. C) Metaloids. D) Alkaline earth. Show Answer Correct Answer: D) Alkaline earth. 14. The following elements belong to the same group EXCEPT? A) Argon. B) Calcium. C) Helium. D) Krypton. Show Answer Correct Answer: B) Calcium. 15. The elements A, B and C belong to groups 1, 14 and 17 respectively of the Periodic Table. Which two elements will form ionic compounds? A) A and B. B) A and C. C) B and C. D) None. Show Answer Correct Answer: B) A and C. 16. The group number and period number respectively of an element with atomic number 8 is A) 6, 2. B) 16, 2. C) 16, 2. D) 6, 8. Show Answer Correct Answer: B) 16, 2. 17. Which of the following atoms is biggest in atomic size A) Barium. B) Calcium. C) Magnesium. D) Beryllium. Show Answer Correct Answer: A) Barium. 18. Upto which element, the Law of Octaves was found applicable? A) CALCIUM. B) MAGNESIUM. C) ALUMINIUM. D) POTASSIUM. Show Answer Correct Answer: A) CALCIUM. 19. ..... is an important metal to formamalgam. A) Ag. B) Hg. C) Mg. D) Al. Show Answer Correct Answer: B) Hg. 20. From top to bottom in a group of the periodic table electropositive character of the element ..... A) Increases. B) Decreases. C) Remains unchanged. D) Changes irregularly. Show Answer Correct Answer: A) Increases. 21. Carbon belongs to the second period and Group 14. Silicon belongs to the third period and Group 14. If atomic number of carbon is 6, the atomic number of silicon is A) 7. B) 14. C) 24. D) 16. Show Answer Correct Answer: B) 14. 22. In the alumino thermic process the role ofAl is ..... A) Oxidizing agent. B) Reducing agent. C) Hydrogenating agent. D) Sulphurising agent. Show Answer Correct Answer: B) Reducing agent. 23. Which of the following were not included in the mendeleev periodic table? A) Halogens. B) Alkali metal. C) Non metals. D) Isotopes. Show Answer Correct Answer: D) Isotopes. 24. What is a triad? A) Group of elements. B) Group of atomic masses. C) Group of compounds. D) None of the above. Show Answer Correct Answer: A) Group of elements. 25. On moving from top to bottom in a group, in the periodic table, valency ..... A) Increase. B) Decreases. C) Remains same. D) First increases, then decreases. Show Answer Correct Answer: C) Remains same. ← PreviousNext →Related QuizzesClass 10 Science Chapter 5 Periodic Classification Of Elements Quiz 1Class 10 Science Chapter 5 Periodic Classification Of Elements Quiz 2Class 10 Science Chapter 5 Periodic Classification Of Elements Quiz 3Class 10 Science Chapter 5 Periodic Classification Of Elements Quiz 4Class 10 Science Chapter 5 Periodic Classification Of Elements Quiz 5Class 10 Science Chapter 5 Periodic Classification Of Elements Quiz 7Class 10 Economics Chapter 1 Development QuizClass 10 Economics Chapter 2 Sectors Of The Indian Economy QuizClass 10 Economics Chapter 3 Money And Credit QuizClass 10 Economics Chapter 4 Globalisation And The Indian Economy QuizClass 10 Economics Chapter 5 Consumer Rights QuizClass 10 English Chapter 1 A Letter To God QuizClass 10 English Chapter 10 The Sermon At Benares QuizClass 10 English Chapter 11 The Proposal QuizClass 10 English Chapter 3 Two Stories About Flying QuizClass 10 English Chapter 4 From The Diary Of Anne Frank QuizClass 10 English Chapter 5 And 6 The Hundred Dresses QuizClass 10 English Chapter 7 Glimpses Of India QuizClass 10 English Chapter 8 Mijbil The Otter QuizClass 10 English Chapter 9 Madam Rides The Bus QuizClass 10 English Poem Chapter 1 Dust Of Snow QuizClass 10 English Poem Chapter 10 The Tale Of Custard The Dragon QuizClass 10 English Poem Chapter 11 For Anne Gregory QuizClass 10 English Poem Chapter 2 Fire And Ice QuizClass 10 English Poem Chapter 3 A Tiger In The Zoo QuizClass 10 English Poem Chapter 4 How To Tell Wild Animals QuizClass 10 English Poem Chapter 5 The Ball Poem QuizClass 10 English Poem Chapter 6 Amanda! 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