This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Chemistry (Part I) Chapter 1 Some Basic Concepts Of Chemistry – Quiz 7 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part I) Chapter 1 Some Basic Concepts Of Chemistry Quiz 7 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which out of these is a rare gas? A) Hydrogen. B) Boron. C) Silicon. D) Argon. Show Answer Correct Answer: D) Argon. 2. Which one of the following pairs of compounds illustrate the law of multiple proportions? A) (a) H2O and Na2O. B) (b) MgO and Na2O. C) (c) Na2O and BaO. D) D) SnCl2 and SnCl4. Show Answer Correct Answer: D) D) SnCl2 and SnCl4. 3. Mass percentage of carbon in CO$_{2 is}$ A) 27%. B) 33%. C) 40%. D) 50%. Show Answer Correct Answer: A) 27%. 4. Equivalent mass of a reducing agent = Molar mass of reducing agent /? A) No.of electrons gained by 1 mole. B) No.of electrons lost by 1 mole. C) All the above. D) None of the above. Show Answer Correct Answer: B) No.of electrons lost by 1 mole. 5. A molecule is formed when two or more ..... chemically join together. A) Atoms. B) Compounds. C) Mixtures. D) Solutions. Show Answer Correct Answer: A) Atoms. 6. Electronegativity is ..... A) The ability of an atom to attract/ accept electrons. B) The ability of an atom to lose electrons. C) The energy required to remove an electron from a specific atom. D) How easy it is to make friends. Show Answer Correct Answer: A) The ability of an atom to attract/ accept electrons. 7. Application of chemistry includesA.MedicineB. AgricultureC. IndustriesD. Food E. Daily purposes A) A, B, D, E. B) B, C, D, E. C) A, B, C, D, E. D) None of the options are correct. Show Answer Correct Answer: C) A, B, C, D, E. 8. The molecular formula for Nitric acid A) HNO$_{3}$. B) HNO$_{2}$. C) HNO. D) None of the above. Show Answer Correct Answer: A) HNO$_{3}$. 9. Aahhahah A) Aa. B) Bb. C) Vcc. D) Dd. Show Answer Correct Answer: C) Vcc. 10. Covert 7 m to inches A) 276. B) 200. C) 210. D) 2.54. Show Answer Correct Answer: A) 276. 11. The prefix for the multiple 10$^{-9}$ is A) A) nano. B) (b) peta. C) C) atto. D) (d) all of these. Show Answer Correct Answer: A) A) nano. 12. An Avogadro's number of water molecules is equal to all EXCEPT ..... A) 1 mole of water molecules. B) 2 moles of Hydrogen atoms and 1 mole of oxygen atoms. C) 18 grams of water. D) 18 molecules of water. Show Answer Correct Answer: D) 18 molecules of water. 13. Which of the following is an element? A) Diamond. B) Graphite. C) Ozone. D) Silica. Show Answer Correct Answer: D) Silica. 14. Which of the following is a homogenous mixture? A) Baked beans. B) Sugar dissolved in water. C) Chocolate chip ice cream. D) Chicken noodle soup. Show Answer Correct Answer: B) Sugar dissolved in water. 15. SI unit of density A) G/mL. B) Kg/L. C) Kg/m$^{3}$. D) Kg/dm$^{3}$. Show Answer Correct Answer: C) Kg/m$^{3}$. 16. Nitrate ion contains A) Nitrogen and oxygen. B) Nitrogen only. C) Nitrogen, hydrogen and oxygen. D) Sodium and nitrogen. Show Answer Correct Answer: A) Nitrogen and oxygen. 17. Perchloric acid A) HClO. B) HClO$_{2}$. C) HClO$_{3}$. D) HClO$_{4}$. Show Answer Correct Answer: D) HClO$_{4}$. 18. Given below are the quantum numbers for 4 electrons.A. n=3, 1=2, m1=1, ms=+1/2B. n=4, 1=1, m1=0, ms=+1/2C. n=4, 1=2, m1=-2, ms=-1/2D. n=3, 1=1, m1=-1, ms=+1/2The correct order of increasing energy is A) D B) D C) B D) B Show Answer Correct Answer: B) D 19. In correct position tell first ten elements A) H, He, Li, Be, B, C, N, O, F, Ne. B) H, He, Li, Be, B, C, N, O, F, Na. C) H, He, Li, B, Be, C, N, O, F, Ne. D) All are correct. Show Answer Correct Answer: A) H, He, Li, Be, B, C, N, O, F, Ne. 20. Ba$_{3}$(PO$_{4}$)$_{2}$ A) Barium phosphide. B) Barium phosphite. C) Barium phosphate. D) Phosphoric acid. Show Answer Correct Answer: C) Barium phosphate. 21. On the Paulings electro negativity scale the element next to F is ..... ? A) N. B) Cl. C) O. D) Ne. Show Answer Correct Answer: C) O. 22. Which of the following element has least number of electrons in its M-shell? A) K. B) Mn. C) Ni. D) Sc. Show Answer Correct Answer: A) K. 23. What are Intensive properties? A) Properties independent of the amount of matter present. B) Properties dependent on the amount of matter present. C) Weight. D) Volume. Show Answer Correct Answer: A) Properties independent of the amount of matter present. 24. SI unit of pressure A) Atm. B) Bar. C) Pa. D) Mm of Hg. Show Answer Correct Answer: C) Pa. 25. Which of the following is alkyne? A) C$_{2}$H$_{2}$. B) C$_{4}$H$_{8}$. C) C$_{6}$H$_{12}$. D) C$_{5}$H$_{12}$. Show Answer Correct Answer: A) C$_{2}$H$_{2}$. ← PreviousNext →Related QuizzesClass 11 Chemistry (Part I) Chapter 1 Some Basic Concepts Of Chemistry Quiz 1Class 11 Chemistry (Part I) Chapter 1 Some Basic Concepts Of Chemistry Quiz 2Class 11 Chemistry (Part I) Chapter 1 Some Basic Concepts Of Chemistry Quiz 3Class 11 Chemistry (Part I) Chapter 1 Some Basic Concepts Of Chemistry Quiz 4Class 11 Chemistry (Part I) Chapter 1 Some Basic Concepts Of Chemistry Quiz 5Class 11 Chemistry (Part I) Chapter 1 Some Basic Concepts Of Chemistry Quiz 6Class 11 Chemistry (Part I) Chapter 1 Some Basic Concepts Of Chemistry Quiz 8Class 11 Chemistry (Part I) Chapter 1 Some Basic Concepts Of Chemistry Quiz 9Class 11 Chemistry (Part I) Chapter 1 Some Basic Concepts Of Chemistry Quiz 10Class 11 Chemistry (Part I) Chapter 1 Some Basic Concepts Of Chemistry Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books