This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Chemistry (Part Ii) Chapter 7 P Block Elements – Quiz 26 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Chemistry (Part Ii) Chapter 7 P Block Elements Quiz 26 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What gas is always produced when carbonates reacts with acids? A) Oxygen. B) Hydrogen. C) Carbon dioxide. D) Nitrogen. Show Answer Correct Answer: C) Carbon dioxide. 2. Bismuth is a A) Metalloids. B) Non metal. C) Metal. D) None of the above. Show Answer Correct Answer: C) Metal. 3. What is the name of the following ion?O $^{2-}$ A) Oxide ion. B) Peroxide ion. C) Oxyate ion. D) Oxygen ion. Show Answer Correct Answer: A) Oxide ion. 4. What is the primary reason for lithium's anomalous properties compared to other alkali metals? A) Low ionization energy. B) High electronegativity. C) Small size and high polarizing power. D) High atomic mass. Show Answer Correct Answer: C) Small size and high polarizing power. 5. What did Haber synthesize for Nobel Peace Prize? A) Chlorine gas. B) Mustard gas. C) Synthesizing Ammonia. D) Dynamite. Show Answer Correct Answer: C) Synthesizing Ammonia. 6. First compound of Xenon made by Neil Bartlett was ..... A) Xe$^{+}$PtF$_{6}$$^{-}$. B) XeF6. C) XeOF$_{4}$. D) XeO$_{2}$F$_{2}$. Show Answer Correct Answer: A) Xe$^{+}$PtF$_{6}$$^{-}$. 7. Name most metallic element in Group 14 A) Lead. B) Carbon. C) Silicon. D) Germanium. Show Answer Correct Answer: A) Lead. 8. Ga has more ionization energy than Al due to A) Increased atomic radii. B) Ineffective screening effect. C) Effective screening effect. D) Decreased atomic size. Show Answer Correct Answer: B) Ineffective screening effect. 9. As we move down group 15 elements, which of the following trends is observed? A) Atomic size increases, metallic character decreases. B) Atomic size remains constant, metallic character decreases. C) Atomic size decreases, metallic character decreases. D) Atomic size increases, metallic character increases. Show Answer Correct Answer: A) Atomic size increases, metallic character decreases. 10. Which of the following is the sulphate ore of aluminium? A) Cryolite. B) Alunite. C) Bauxite. D) Gibbisite. Show Answer Correct Answer: B) Alunite. 11. Which of the following is a non-metal A) Bi. B) Sb. C) N. D) None of these. Show Answer Correct Answer: C) N. 12. Which Group 15 element is commonly used in fertilizers? A) Nitrogen. B) Boron. C) Arsenic. D) Phosphorus. Show Answer Correct Answer: A) Nitrogen. 13. What is the relationship between group number and valence electrons in p-block elements? A) The group number reflects the total number of electrons in p-block elements. B) The group number determines the atomic mass of p-block elements. C) The group number indicates the number of valence electrons in p-block elements. D) Valence electrons in p-block elements are constant across all groups. Show Answer Correct Answer: C) The group number indicates the number of valence electrons in p-block elements. 14. Which of the following is a non metal A) Bi. B) As. C) Po. D) Rn. Show Answer Correct Answer: D) Rn. 15. In OF$_{2}$ the oxidation state of oxygen is A) +2. B) -2. C) -1. D) 0. Show Answer Correct Answer: A) +2. 16. Zinc on reaction with dilute HNO3 gives x and zinc onreaction with concentrated HNO3 gives y. Identify x and y. A) X = NO2, y = N2O. B) X = N2O, y = NO. C) X = NO, y = NO2. D) X = N2O, y = NO2. Show Answer Correct Answer: D) X = N2O, y = NO2. 17. Which of the following elements has a greater tendency to form chain of bonds with itself or with other atoms? A) B. B) N. C) C. D) O. Show Answer Correct Answer: C) C. 18. Ammonia is prepared by A) Contact process. B) Haber process. C) Ostwald process. D) None of the above. Show Answer Correct Answer: B) Haber process. 19. The oxidation state of N is highest in A) NH$_{2}$OH. B) N$_{3}$H. C) NH$_{3}$. D) N$_{2}$H$_{4}$. Show Answer Correct Answer: B) N$_{3}$H. 20. A brown ring is formed in the ring test for NO$_{3}$$^{-}$ion. It is due to the formation of A) [Fe(H$_{2}$O)$_{5}$ (NO)]$^{2+}$. B) FeSO$_{4}$.NO$_{2}$. C) [Fe(H$_{2}$O)$_{4}$(NO)$_{2}$]$^{2+}$. D) FeSO$_{4}$.HNO$_{3}$. Show Answer Correct Answer: A) [Fe(H$_{2}$O)$_{5}$ (NO)]$^{2+}$. 21. Boron halides behave as Lewis acids because they A) Have only six electron in the valence shell. B) Have a lone pair of electrons on the B atom. C) Are covalent compounds. D) Are ionic compounds. Show Answer Correct Answer: A) Have only six electron in the valence shell. 22. No. of electrons involved in bonding in diborane molecule? A) 10. B) 11. C) 12. D) 13. Show Answer Correct Answer: C) 12. 23. The Modern Periodic Table of Elements is arranged by A) Atomic mass. B) Atomic number. C) Valence electrons. D) Number of isotopes. Show Answer Correct Answer: B) Atomic number. 24. The property of halogens which is not correctly matched is A) F > Cl > Br > I (Ionisation energy). B) F > Cl > Br > I (Electronegativity). C) I > Br Cl > F (Density). D) F > Cl > Br > I (Electron affinity). Show Answer Correct Answer: D) F > Cl > Br > I (Electron affinity). 25. A gas (X) is obtained when copper reacts with dil. HNO$_{3}$. The gas thus formed reacts with oxygen to given brown fumes of (Y). (Y) when dissolved in when gives an important acid (Z) respectively are A) NO$_{2}$;NO;HNO$_{3}$. B) NO;N$_{2}$O;HNO$_{3}$. C) NO;NO$_{2}$;HNO$_{3}$. D) NO$_{2}$;NO;HNO$_{2}$. Show Answer Correct Answer: C) NO;NO$_{2}$;HNO$_{3}$. ← PreviousNext →Related QuizzesClass 12 Chemistry (Part Ii) Chapter 7 P Block Elements Quiz 1Class 12 Chemistry (Part Ii) Chapter 7 P Block Elements Quiz 2Class 12 Chemistry (Part Ii) Chapter 7 P Block Elements Quiz 3Class 12 Chemistry (Part Ii) Chapter 7 P Block Elements Quiz 4Class 12 Chemistry (Part Ii) Chapter 7 P Block Elements Quiz 5Class 12 Chemistry (Part Ii) Chapter 7 P Block Elements Quiz 6Class 12 Chemistry (Part Ii) Chapter 7 P Block Elements Quiz 7Class 12 Chemistry (Part Ii) Chapter 7 P Block Elements Quiz 8Class 12 Chemistry (Part Ii) Chapter 7 P Block Elements Quiz 9Class 12 Chemistry (Part Ii) Chapter 7 P Block Elements Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books