This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Chemistry (Part Ii) Chapter 7 P Block Elements – Quiz 23 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Chemistry (Part Ii) Chapter 7 P Block Elements Quiz 23 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What are the common compounds formed by p-block elements? A) Common compounds include oxides, halides, and sulfides. B) Hydrides, phosphides, and selenides. C) Chlorides, acetates, and silicates. D) Nitrates, carbonates, and phosphates. Show Answer Correct Answer: A) Common compounds include oxides, halides, and sulfides. 2. Halogens have ..... electrons in their outermost shell A) Seven. B) Eight. C) Six. D) Five. Show Answer Correct Answer: A) Seven. 3. The range of oxidation state shown by phosphorous is of A) -3 to5. B) -3 to 0. C) 0 to 5. D) -4 to +2. Show Answer Correct Answer: A) -3 to5. 4. What is the trend in the formation of covalent bonds among p block elements? A) Covalent bond formation remains constant across a period and down a group. B) Covalent bond formation is highest at the top of a group and lowest at the bottom. C) Covalent bond formation increases across a period and decreases down a group. D) Covalent bond formation decreases across a period and increases down a group. Show Answer Correct Answer: C) Covalent bond formation increases across a period and decreases down a group. 5. Oxygen exhibits positive oxidation state is A) O$_{2}$ F$_{2}$. B) NO. C) CO$_{2}$. D) N$_{2}$O. Show Answer Correct Answer: A) O$_{2}$ F$_{2}$. 6. What is the formula for the carbonate ion? A) CO$_{3}$$^{2-}$. B) CO$_{3}$$^{-}$. C) CO$_{2}$$^{-}$. D) CO$_{4}$$^{2-}$. Show Answer Correct Answer: A) CO$_{3}$$^{2-}$. 7. States of group 7 elements are ..... A) Fluorine-liquid, chlorine-gas, Bromine liquid, iodine solid. B) Fluorine-gas, chlorine-gas, Bromine liquid, iodine gas. C) Fluorine-gas, chlorine-gas, Bromine liquid, iodine solid. D) Fluorine-gas, chlorine-gas, Bromine gas, iodine solid. Show Answer Correct Answer: C) Fluorine-gas, chlorine-gas, Bromine liquid, iodine solid. 8. Which one of the following oxyacids of Chlorine is the strongest? A) HOCl. B) HClO$_{2}$. C) HClO$_{3}$. D) HClO$_{4}$. Show Answer Correct Answer: D) HClO$_{4}$. 9. What are the products formed in the reaction of Xenon hexafluoride with silicon dioxide? A) XeSiO$_{4}$+HF. B) XeF$_{2}$+ SiF$_{4}$. C) XeOF$_{4}$+SiF$_{4}$. D) XeO$_{3}$+ SiF$_{2}$. Show Answer Correct Answer: C) XeOF$_{4}$+SiF$_{4}$. 10. Br2 + F2 (excess) $\rightarrow$ A) BrF. B) BrF5. C) BrF3. D) Br2F2. Show Answer Correct Answer: B) BrF5. 11. Which of the following statements is not correct about XeF$_{2}$? A) It can be obtained by direct reaction between F$_{2}$ & Xe at high pressure. B) XeF$_{2}$ undergoes alkaline hydrolysis to give O$_{2}$ and Xe. C) XeF$_{2}$ is a powerful reducing agent. D) XeF$_{2}$ contains two bond pairs and three lone pairs. Show Answer Correct Answer: C) XeF$_{2}$ is a powerful reducing agent. 12. Which statement about the nature of oxides formed by p-block elements is incorrect? A) Oxides of elements towards the left and lower part of the p-block are generally more basic. B) Oxides from elements at the top right of the p-block tend to be acidic. C) The majority of p-block elements form amphoteric oxides, reacting with both acids and bases. D) None of the above. Show Answer Correct Answer: C) The majority of p-block elements form amphoteric oxides, reacting with both acids and bases. 13. Which of the following is the increasing order of enthalpy of vaporization? A) NH3, PH3, ASH3. B) AsH3, PH3, NH3. C) NH3, ASH3, PH3. D) PH3, AsH3, NH3. Show Answer Correct Answer: D) PH3, AsH3, NH3. 14. Balance the ionic equation:Cl$_{2}$$^{ }$+ KBr $\rightarrow$ Br$_{2}$$^{ }$+ KCl A) Cl$_{2}$$^{ }$+ 2KBr $\rightarrow$ Br$_{2}$$^{ }$+ 2KCl. B) Cl$_{2}$$^{ }$+ 2KBr $\rightarrow$ Br$_{2}$$^{ }$+ KCl. C) Cl$_{2}$$^{ }$+ KBr $\rightarrow$ Br$_{2}$$^{ }$+ 2KCl. D) None of the above. Show Answer Correct Answer: A) Cl$_{2}$$^{ }$+ 2KBr $\rightarrow$ Br$_{2}$$^{ }$+ 2KCl. 15. What is the coordination number of Fluorine in HOF? A) -1. B) 0. C) +1. D) None of these. Show Answer Correct Answer: C) +1. 16. On addition of conc. H$_{2}$SO$_{4}$ to a chloride salt, colurless fumes are evolved but in case of iodide salt, violet fumes come out. This is because A) H$_{2}$SO$_{4}$ reduces HI to I$_{2}$. B) HI is of violet colour. C) HI gets oxidized to I$_{2}$. D) HI changes to HIO$_{3}$. Show Answer Correct Answer: C) HI gets oxidized to I$_{2}$. 17. Choose the correct geometry for XeF$_{6}$ A) Trigonal bipyramidal. B) Distorted octahedral. C) Square planar. D) Tetrahedral. Show Answer Correct Answer: B) Distorted octahedral. 18. Bond angle in PH$_{4}$$^{+ }$is higher than that in PH$_{3}$ A) Because PH$_{4}$$^{+}$ sp$^{3}$d and trigonal bi pyramidal. B) Because PH$_{4}$$^{+}$ sp$^{3}$ tetrahedral. C) Because PH$_{4}$$^{+}$ sp$^{2}$ trigonal planner. D) None of these. Show Answer Correct Answer: B) Because PH$_{4}$$^{+}$ sp$^{3}$ tetrahedral. 19. Nitrogen and phosphorus are A) Non metals. B) Metals. C) Metalloids. D) None of the above. Show Answer Correct Answer: A) Non metals. 20. Boric acid is also known as: A) Orthoboric acid. B) Metaboric acid. C) Pyroboric acid. D) Boric oxide. Show Answer Correct Answer: A) Orthoboric acid. 21. Which of the following is not true for perchlorate ion A) Covalency of Cl is 7. B) Hybridization on Cl atom is sp3. C) Trigonal pyramidal ion. D) It is isostructural with permanganate ion. Show Answer Correct Answer: C) Trigonal pyramidal ion. 22. The three important oxidation states of phosphorus are A) -3, +3 and +5. B) -3, +3 and-5. C) -3, +3 and +2. D) -3, +3 and +4. Show Answer Correct Answer: A) -3, +3 and +5. 23. The hybridisation in XeOF4 is A) Sp2. B) Sp3. C) Sp3d. D) Sp3d2. Show Answer Correct Answer: D) Sp3d2. 24. Sindoor is A) PbNO3. B) Pb3O4. C) PbOH2. D) PbCO3. Show Answer Correct Answer: B) Pb3O4. 25. The number of S-S bonds in SO$_{3}$ trimer (S$_{3}$O$_{9}$) A) 3. B) 2. C) 1. D) 0. Show Answer Correct Answer: D) 0. ← 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