This quiz works best with JavaScript enabled. Home > Cbse > Class 12 > Science > Chemistry Part Ii > Class 12 Chemistry (Part Ii) Chapter 7 P Block Elements – Quiz 10 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Chemistry (Part Ii) Chapter 7 P Block Elements Quiz 10 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The hybridisation in XeOF4 is A) Sp3d. B) Sp3d2. C) Sp2. D) Sp3. Show Answer Correct Answer: B) Sp3d2. 2. The number of S-S bonds in SO$_{3}$ trimer (S$_{3}$O$_{9}$) A) 2. B) 3. C) 0. D) 1. Show Answer Correct Answer: C) 0. 3. S is the ..... the most abundant element A) 13. B) 16. C) 20. D) 10. Show Answer Correct Answer: B) 16. 4. Aluminum ions are attracted to the A) Anode. B) Cathode. C) All the above. D) None of the above. Show Answer Correct Answer: B) Cathode. 5. Which of the following oxides is the most acidic? A) N2O5. B) As2O5. C) P2O5. D) Sb2O5. Show Answer Correct Answer: A) N2O5. 6. What is the correct oxidation state change for sulfur when bromide ions react with conc sulfuric acid? A) 6 to 2. B) 6 to 4. C) 6 to-2. D) 6 to zero. Show Answer Correct Answer: B) 6 to 4. 7. The hybridization state of the central atom and shape of the molecules is given below. Mark the incorrect combination. A) SO$_{3}$-sp$^{2}$ hybridisation, planar triangular. B) SO$_{2}$-sp$^{2}$ hybridisation, V-shaped. C) H$_{2}$SO$_{4}$-sp$^{2}$ hybridisation, V-shaped. D) O$_{3}$-sp$^{2}$ hybridisation, angular. Show Answer Correct Answer: C) H$_{2}$SO$_{4}$-sp$^{2}$ hybridisation, V-shaped. 8. Which group of the periodic table does not belong to the p-block? A) Group 3. B) Group 14. C) Group 13. D) Group 18. Show Answer Correct Answer: A) Group 3. 9. Electronic configuration of Tl A) [Xe] 5d54f146s26p2. B) [Xe] 5d104f146s26p2. C) [Xe] 5d104f146s16p2. D) [Xe] 5d104f146s26p1. Show Answer Correct Answer: D) [Xe] 5d104f146s26p1. 10. Which of the following is the most electronegative p-block element? A) Nitrogen. B) Oxygen. C) Fluorine. D) Chlorine. Show Answer Correct Answer: C) Fluorine. 11. Which element has the highest radii in p-block element A) Bismuth. B) Oxygen. C) Boron. D) Nitrogen. Show Answer Correct Answer: A) Bismuth. 12. Which has the heighest electron affinity A) Br. B) I. C) Cl. D) F. Show Answer Correct Answer: C) Cl. 13. What is the name of the Group 15 element with atomic number 33? A) Phosphorus. B) Boron. C) Selenium. D) Arsenic. Show Answer Correct Answer: D) Arsenic. 14. What is the most stable oxidation state of aluminum? A) +4. B) +3. C) +1. D) +2. Show Answer Correct Answer: B) +3. 15. Which of the following is Phoshphonitrilic halide? A) P2O5. B) PCl3. C) PCl5. D) (PNCl2)3. Show Answer Correct Answer: D) (PNCl2)3. 16. In the context of redox properties of p-block elements, which statement is incorrect? A) Fluorine is the strongest oxidizing agent among the halogens due to its high electronegativity. B) The reducing power of halogens decreases down the group, with fluorine being the least potent reducer. C) Chlorine is a stronger oxidizing agent than iodine, reflecting the general trend in halogen reactivity. D) None of the above. Show Answer Correct Answer: B) The reducing power of halogens decreases down the group, with fluorine being the least potent reducer. 17. Among the following molecules, (i) XeO$_{3}$ (ii) XeOF$_{4}$ (iii) XeF$_{6}$Those having same no. of lone pairs on Xe are A) (ii) & (iii) only. B) (i) & (iii) only. C) (i), (ii) & (iii). D) (i) & (ii) only. Show Answer Correct Answer: C) (i), (ii) & (iii). 18. Which of the following is not a use of noble gases? A) Ar is widely used for filling incandescent electric bulbs. B) Ne is used in safety devices for protecting electrical instruments. C) Rd is used in radiotherapy of cancer. D) He is filled in tubes of cycles & scooters tyres. Show Answer Correct Answer: D) He is filled in tubes of cycles & scooters tyres. 19. During the process of electrolytic refining of copper, some metals present as impurity settle as 'anode mud'. These are A) Fe and Ni. B) Ag and Au. C) Pb and Zn. D) Sn and Ag. Show Answer Correct Answer: B) Ag and Au. 20. D block elements generally form coloured compounds due to A) Lanthanoid contraction. B) Presence of d orbital. C) D-d transition. D) High charge/size ratio. Show Answer Correct Answer: C) D-d transition. 21. What is the electronic configuration of the Group 15 elements? A) Ns2np4. B) Ns2np5. C) Ns2np3. D) Ns2np2. Show Answer Correct Answer: C) Ns2np3. 22. Phosphine has ..... like smell A) Fish. B) Egg. C) Flower. D) None of th. Show Answer Correct Answer: A) Fish. 23. Helium is preferred to be used in balloons instead of hydrogen as helium is A) Lighter than hydrogen. B) More abundant than hydrogen. C) Non polarizable. D) Incombustible. Show Answer Correct Answer: D) Incombustible. 24. What is the general electronic configuration of alkali metals? A) [noble gas]np2. B) [noble gas]ns1. C) [noble gas]ns2. D) [noble gas]np1. Show Answer Correct Answer: B) [noble gas]ns1. 25. Ammonia is a liquid while phosphene is a gas . Why? A) Due to more molar mass ammonia has maximum vanderwaal's force of attraction. B) Due to more molar mass, ammonia has less vanderwaal's force of attraction. C) Due to presence of intermolecular hydrogen bonding in ammonia. D) Due to absence of hydrogen bonding in ammonia. Show Answer Correct Answer: C) Due to presence of intermolecular hydrogen bonding in ammonia. 26. What is the name of the ore that contains aluminum A) Cryolite. B) Aluminum oxide. C) Heamatite. D) Bauxite. Show Answer Correct Answer: D) Bauxite. 27. What does the combination of Chlorine gas and Water produce? A) Hydrobromic Acid. B) Phosgene. C) Hydrochloric Acid. D) Chlorine and Carbon Monoxide. Show Answer Correct Answer: C) Hydrochloric Acid. 28. Zeolites are microporous, aluminosilicate minerals. Sodium zeolite is an important synthetic zeolite that is widely used to soften hard water. Which of the following explains how sodium zeolite helps to soften hard water? A) It replaces the Ca$^{2+}$ ions with Na$^{+}$ ions. B) It reduces the surface tension of water. C) It lowers the solubility product of the insoluble salt. D) It helps to break the calcium and magnesium deposits in water. Show Answer Correct Answer: A) It replaces the Ca$^{2+}$ ions with Na$^{+}$ ions. 29. Which of the following gases may act as both as an oxidizing and reducing agent A) SO$_{3}$. B) SO$_{2}$. C) H$_{2}$S. D) O$_{2}$. Show Answer Correct Answer: B) SO$_{2}$. 30. What is the first step in the preparation of silicones A) Preparation of silanols. B) Polymerization of silanols. C) Preparation of dialkyl or diaryl silicon halides. D) Hydrolysis of intermediate. Show Answer Correct Answer: C) Preparation of dialkyl or diaryl silicon halides. 31. The shape of IF7 is A) Planar. B) Square pyramidal. C) Pentagonal bipyramidal. D) T-Shape. Show Answer Correct Answer: C) Pentagonal bipyramidal. 32. N is used to fill electric bulbs because A) It makes the bulb to glow. B) It is non toxic. C) It does not support combustion. D) It is lighter than air. Show Answer Correct Answer: C) It does not support combustion. 33. What is the trend of ionic radii in alkali metals as you move down the group? A) Decreases. B) Remains constant. C) Fluctuates. D) Increases. Show Answer Correct Answer: D) Increases. 34. Rohan is studying the periodic table in his chemistry class. How does the atomic radius change as we move from top to bottom in a group? A) Gradually increase. B) Gradually decrease. C) Remains constant. D) First decrease then increase. Show Answer Correct Answer: A) Gradually increase. 35. For advertisement, the coloured discharge tubes contain: A) He. B) Ne. C) Xe. D) Kr. Show Answer Correct Answer: B) Ne. 36. Buckminster fullerene is A) C90. B) C 60. C) Pure diamond. D) Graphite. Show Answer Correct Answer: B) C 60. 37. The shape of p-orbital is A) Dumbbell. B) Spherical. C) Planar. D) None of these. Show Answer Correct Answer: A) Dumbbell. 38. The shape of XeOF2 is A) Linear. B) T shaped. C) Pyramidal. D) None. Show Answer Correct Answer: B) T shaped. 39. Which of the following is the most powerful oxidizing agent? A) Iodine. B) Fluorine. C) Chlorine. D) Bromine. Show Answer Correct Answer: B) Fluorine. 40. Which Group 14 element is used in semiconductors? A) Tin. B) Lead. C) Germanium. D) Silicon. Show Answer Correct Answer: D) Silicon. 41. Hypochlorous acid and perchloric acid respectively are A) HOCl and HClO$_{4}$. B) HOCI and HClO$_{3}$. C) HClO$_{2}$ and HClO$_{3}$. D) HCOI$_{2}$ and HClO$_{4}$. Show Answer Correct Answer: A) HOCl and HClO$_{4}$. 42. Which noble gas is found in signs or light displays? A) Neon. B) Helium. C) Argon. D) Krypton. Show Answer Correct Answer: A) Neon. 43. Which of the following compounds of Sulphur does not exist? A) SCl$_{6}$. B) SO$_{2}$Cl$_{2}$. C) SF$_{6}$. D) Na$_{2}$S$_{2}$O$_{3}$. Show Answer Correct Answer: A) SCl$_{6}$. 44. Which of the following is not true for peroxodisulphate ion A) Covalency of S is 6. B) Oxidation number of terminal oxygen atoms is-2. C) Oxidation number of both bridged oxygen atoms is-1. D) Number of lone pairs of electrons is 16. Show Answer Correct Answer: D) Number of lone pairs of electrons is 16. 45. The colour of chorine gas A) Greenish yellow. B) Reddish brown. C) Violet. D) Yellow. Show Answer Correct Answer: A) Greenish yellow. 46. P-block element consists of the groups A) 1 & 2. B) 3-12. C) 13-17. D) 13-18. Show Answer Correct Answer: D) 13-18. 47. Which Group 15 element is used in the manufacture of semiconductors? A) Phosphorus. B) Arsenic. C) Boron. D) Nitrogen. Show Answer Correct Answer: A) Phosphorus. 48. XeF$_{6 on complete hydrolysis produces }$ A) XeOF $_{4}$. B) Xe O $_{2}$. C) Xe O $_{3}$$^{ }$. D) XeO$_{2F 2}$. Show Answer Correct Answer: C) Xe O $_{3}$$^{ }$. 49. Which of the following oxides is known for its acidic properties? A) FeO. B) K2O. C) SO2. D) Al2O3. Show Answer Correct Answer: C) SO2. 50. What is the property of silicon that enables it to be used as a semiconductor? A) Has mobile valence electrons. B) Has a giant, crystalline crystal structure. C) Has strong Si-Si covalent bonds. D) Exhibits metallic and non-metallic properties. Show Answer Correct Answer: A) Has mobile valence electrons. 51. Fluorine differs from rest of the halogens in some of its properties. This is due to A) Smaller size and high electonegativity. B) Lack of d orbitals. C) Low bond dissociation enthalpy. D) All of the above. Show Answer Correct Answer: D) All of the above. 52. What gas is always produced when carbonates reacts with acids? A) Carbon dioxide. B) Oxygen. C) Nitrogen. D) Hydrogen. Show Answer Correct Answer: A) Carbon dioxide. 53. What is the primary reason for lithium's anomalous properties compared to other alkali metals? A) Low ionization energy. B) High electronegativity. C) Small size and high polarizing power. D) High atomic mass. Show Answer Correct Answer: C) Small size and high polarizing power. 54. What did Haber synthesize for Nobel Peace Prize? A) Synthesizing Ammonia. B) Chlorine gas. C) Mustard gas. D) Dynamite. Show Answer Correct Answer: A) Synthesizing Ammonia. 55. First compound of Xenon made by Neil Bartlett was ..... A) Xe$^{+}$PtF$_{6}$$^{-}$. B) XeF6. C) XeOF$_{4}$. D) XeO$_{2}$F$_{2}$. Show Answer Correct Answer: A) Xe$^{+}$PtF$_{6}$$^{-}$. 56. Name most metallic element in Group 14 A) Silicon. B) Germanium. C) Lead. D) Carbon. Show Answer Correct Answer: C) Lead. 57. Ga has more ionization energy than Al due to A) Decreased atomic size. B) Ineffective screening effect. C) Increased atomic radii. D) Effective screening effect. Show Answer Correct Answer: B) Ineffective screening effect. 58. 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. 59. Which of the following is the sulphate ore of aluminium? A) Bauxite. B) Gibbisite. C) Alunite. D) Cryolite. Show Answer Correct Answer: C) Alunite. 60. Which of the following is a non-metal A) Bi. B) Sb. C) N. D) None of these. Show Answer Correct Answer: C) N. ← PreviousNext →Related QuizzesScience QuizzesClass 12 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 8 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books