This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Chemistry (Part Ii) Chapter 7 P Block Elements – Quiz 12 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Chemistry (Part Ii) Chapter 7 P Block Elements Quiz 12 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Ammonia is a Lewis base and act as complexing agent because A) It accepts electron pair. B) It is neither electron pair donar or acceptor. C) It act as electron pair donar. D) It exhibit covalency more than five. Show Answer Correct Answer: C) It act as electron pair donar. 2. LiAlH$_{4}$ + SiCl$_{4}$ A) SiH$_{2}$ +AlCl$_{3}$ + LiCl. B) SiH$_{4}$ +AlCl$_{3}$ + LiCl. C) SiH$_{4}$ +AlCl$_{3}$ + 2LiCl. D) SiH$_{2}$ +AlCl$_{3}$ + 2LiCl. Show Answer Correct Answer: B) SiH$_{4}$ +AlCl$_{3}$ + LiCl. 3. The deep blue colour produced on adding excess ofammonia to copper sulphate is due to presence of A) Cu2+. B) [Cu(NH3)4]2+. C) [Cu(NH3)6]2+. D) [Cu(NH3)2]2+. Show Answer Correct Answer: B) [Cu(NH3)4]2+. 4. Which of the following is correct representation of reaction of acidified permanganate solution with sulphur dioxide? A) 2MnO$^{-}$$_{4}$+5SO$_{2}$+2H$_{2}$O$\rightarrow$5SO$^{2-}$$_{4}$+2Mn$^{2+}$+4H$^{+}$. B) MnO$^{-}$$_{4}$+SO$_{2}$+2H$_{2}$O$\rightarrow$S+Mn$^{2+}$+4H$^{+}$. C) 2MnO$^{-}$$_{4}$+5SO$_{2}$+2H$_{2}$O$\rightarrow$4SO$^{2-}$$_{3}$+2Mn$^{2+}$+4H$^{+}$. D) 3MnO$^{-}$$_{4}$+2SO$_{2}$+2H$_{2}$O$\rightarrow$2S+3Mn$^{2+}$+4H$^{+}$. Show Answer Correct Answer: A) 2MnO$^{-}$$_{4}$+5SO$_{2}$+2H$_{2}$O$\rightarrow$5SO$^{2-}$$_{4}$+2Mn$^{2+}$+4H$^{+}$. 5. Which compound has planar structure? A) XeF$_{4}$. B) XeOF$_{2}$. C) XeO$_{2}$F$_{2}$. D) XeO$_{4}$. Show Answer Correct Answer: A) XeF$_{4}$. 6. Correct order of boiling point is A) H$_{2}$O < H$_{2}$S < H$_{2}$Se < H$_{2}$Te. B) H$_{2}$O < H$_{2}$Se < H$_{2}$Te < H$_{2}$S. C) H$_{2}$Te < H$_{2}$O < H$_{2}$S < H$_{2}$Se. D) H$_{2}$S < H$_{2}$Se < H$_{2}$Te < H$_{2}$O. Show Answer Correct Answer: D) H$_{2}$S < H$_{2}$Se < H$_{2}$Te < H$_{2}$O. 7. It is the strongest oxidising agent and most reactive element among the halogens. A) F. B) Cl. C) Br. D) I. Show Answer Correct Answer: A) F. 8. Which of the following statement is not correct for nitrogen? A) Its electronegativity is very high. B) D-orbitals are available for bonding. C) It is a typical non-metal. D) Its molecular size is small. Show Answer Correct Answer: B) D-orbitals are available for bonding. 9. Chlorine is used as a ..... A) Bleaching agent. B) Extraction of gold and platinum. C) Tear gas. D) All of these. Show Answer Correct Answer: D) All of these. 10. Why is Helium used in divers' tank but not hydrogen gas? A) Helium is lighter than hydrogen. B) Helium is inert to any chemical reactions. C) Helium is cheaper. D) Helium is easy to get from market. Show Answer Correct Answer: B) Helium is inert to any chemical reactions. 11. The chemical form of Borax is A) Sodium carbonate. B) Sodium tetra borate. C) Sodium tetraborate decahydrate. D) None of the above. Show Answer Correct Answer: C) Sodium tetraborate decahydrate. 12. Which of the following is in an ionic compound A) NF$_{3 }$. B) BiF$_{3 }$. C) PF$_{3}$. D) NCl$_{3}$. Show Answer Correct Answer: B) BiF$_{3 }$. 13. In which of the following, sulphur is present in +5 oxidation state? A) Dithionic acid. B) Sulphurous acid. C) Sulphuric acid. D) Disulphuric acid. Show Answer Correct Answer: A) Dithionic acid. 14. The element showing maximum catenation property is A) S. B) Te. C) O. D) Se. Show Answer Correct Answer: A) S. 15. Shaan is conducting an experiment to determine which of the following is the lightest p-block element. A) Boron. B) Oxygen. C) Indium. D) Xenon. Show Answer Correct Answer: A) Boron. 16. P-block elements are those elements in which last electron enters in A) P ortibal. B) S orbital. C) D orbital. D) None of the above. Show Answer Correct Answer: A) P ortibal. 17. Which has highest boiling agent A) NH3. B) PH3. C) AsH3. D) BiH3. Show Answer Correct Answer: D) BiH3. 18. 2HClO$_{2 }$+ I$_{2 }$ A) HIO$_{3}$ + Cl$_{2}$. B) 2HIO$_{3}$ + Cl$_{2}$. C) HIO$_{3}$ + 2Cl$_{2}$. D) 2HIO$_{3}$ + 2Cl$_{2}$. Show Answer Correct Answer: B) 2HIO$_{3}$ + Cl$_{2}$. 19. Interhalogen compounds are more reactive than the individual halogens because A) They are prepared by direct combination of halogens. B) X-X' bond is weaker than X-X or X'-X' bonds. C) They are thermally more stable than halogens. D) There is a large difference in their electronegativity. Show Answer Correct Answer: B) X-X' bond is weaker than X-X or X'-X' bonds. 20. The name of monatomic negative ions (anions) all end in what suffix? A) -ate. B) -ine. C) -ide. D) -ate. Show Answer Correct Answer: C) -ide. 21. Which of the following is not amphoteric A) CO2. B) GeO2. C) SnO2. D) PbO2. Show Answer Correct Answer: A) CO2. 22. What contributes to the stability of nitrogen in its molecular form? A) Presence of a triple bond. B) Low electronegativity. C) High ionization energy. D) Large atomic radius. Show Answer Correct Answer: A) Presence of a triple bond. 23. Which of the following statements is incorrect about noble gases? A) They are monoatomic. B) They are colourless. C) They are odourless. D) They all have an outer electronic configuration of ns2np6. Show Answer Correct Answer: D) They all have an outer electronic configuration of ns2np6. 24. The important property shown by p-block elements is A) Complex formation. B) Coloured ion formation. C) Metallic character. D) Inert pair effect. Show Answer Correct Answer: D) Inert pair effect. 25. Chemical formula of ChileSaltpetre A) KNO3. B) NaNO3. C) CaF2. D) Ca9(PO4)6. Show Answer Correct Answer: B) NaNO3. ← 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