This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Chemistry (Part Ii) Chapter 7 P Block Elements – Quiz 30 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Chemistry (Part Ii) Chapter 7 P Block Elements Quiz 30 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is the correct order of atomic size of noble gas A) He B) He>Ne>Ar>Kr>Xe. C) Xe D) Xe>Kr>Ar>Ne>He. Show Answer Correct Answer: A) He 2. Sulphuric acid is diprotic acid, hence it forms A) Acidic salts. B) Acidic& basic salts. C) Acidic & normal salts. D) Double salts. Show Answer Correct Answer: C) Acidic & normal salts. 3. In which of the following oxides, one nitrogen atom is not directly linked to oxygen? A) NO. B) N$_{2}$O$_{4}$. C) N$_{2}$O. D) N$_{2}$O3. Show Answer Correct Answer: C) N$_{2}$O. 4. Number of lone pairs of electrons on Xe atoms XeF$_{2}$, XeF$_{4}$ and XeF$_{6}$ molecules are respectively A) 3, 2 and 1. B) 4, 3 and 2. C) 2, 3 and 1. D) 3, 2 and 0. Show Answer Correct Answer: A) 3, 2 and 1. 5. The element which exists in a liquid state for a wide range of temperature and can be used for measuring high temperature is A) B. B) Al. C) Ga. D) In. Show Answer Correct Answer: C) Ga. 6. Which of the following elements does not show allotropy? A) Nitrogen. B) Bismuth. C) Antimony. D) Arsenic. Show Answer Correct Answer: A) Nitrogen. 7. On heating KClCO$_{3}$, we get A) KClO$_{2}$+O$_{2}$. B) KCl+O$_{2}$. C) KCl+O$_{3}$. D) KCl+O$_{2}$+O$_{3}$. Show Answer Correct Answer: B) KCl+O$_{2}$. 8. What is the shape of ClF3 A) Trigonal Planar. B) Square Pyramidal. C) Tetrahedral. D) Pentagonal Bipyramidal. Show Answer Correct Answer: B) Square Pyramidal. 9. The element does not belongs to 15th group A) P. B) As. C) In. D) Bi. Show Answer Correct Answer: C) In. 10. What is the atomic number of the last element in Group 15? A) 74. B) 92. C) 83. D) 106. Show Answer Correct Answer: C) 83. 11. Which of the following elements will not form stable diatomic molecule? A) O. B) N. C) P. D) I. Show Answer Correct Answer: C) P. 12. ..... are a group of very diverse elements with a wide range of properties. A) S-block elements. B) D-block elements. C) P-block elements. D) F-block elements. Show Answer Correct Answer: C) P-block elements. 13. BORON IS A A) MEATAL. B) NON METAL. C) All the above. D) None of the above. Show Answer Correct Answer: B) NON METAL. 14. N is relatively inactive element because A) Dissociation energy of its molecule is fairly high. B) It has low atomic radius. C) Its electronegativity is fairly high. D) Its atoms has a stable electronic configuration. Show Answer Correct Answer: A) Dissociation energy of its molecule is fairly high. 15. Which of the following is known as "inorganic benzene" ? A) Phosphazine. B) Piperazine. C) Borazine. D) Pyridine. Show Answer Correct Answer: C) Borazine. 16. Boron cannot form which one of the following anions? A) B(OH)$_{4}$$^{-}$. B) BO$_{2}$$^{-}$. C) BF$_{6}$$^{3-}$. D) BH$_{4}$$^{-}$. Show Answer Correct Answer: C) BF$_{6}$$^{3-}$. 17. Hot conc. $H_2SO_4$ $H_2SO_4$ A) Cu. B) S. C) C. D) Zn. Show Answer Correct Answer: C) C. 18. Which of the following elements shows allotropy? A) Fluorine. B) Neon. C) Phosphorus. D) Aluminium. Show Answer Correct Answer: C) Phosphorus. 19. Which of the following is only acidic in nature? A) B(OH)$_{3}$. B) Al(OH)$_{3}$. C) Be(OH)$_{2}$. D) Mg(OH)$_{2}$. Show Answer Correct Answer: A) B(OH)$_{3}$. 20. All elements in the Halogen family react violently because A) Halogens have 1 valence electron that they give away readily to other elements in reactions. B) Halogens have 7 valence electrons which gives up massive energy when they give all seven to other elements. C) Halogens need only 1 electron which they will violently take from other elements. D) Halogens only react violently with water. Show Answer Correct Answer: C) Halogens need only 1 electron which they will violently take from other elements. 21. The following shows the information about element Y.-Achieved stable octet electron arrangement-Used in lasers for eye retina treatmentIdentify element Y. A) Helium. B) Uranium. C) Krypton. D) Cobalt. Show Answer Correct Answer: C) Krypton. 22. Among the following, which has greater boiling point? A) H2O. B) H2Se. C) H2S. D) H2Te. Show Answer Correct Answer: A) H2O. 23. Which of the following hydrides is most acidic? A) H2Te. B) H2Se. C) H2O. D) H2S. Show Answer Correct Answer: A) H2Te. 24. The hybridization of Xe in XeF$_{2 }$is A) Sp$^{3}$. B) Sp$^{2}$. C) Sp$^{3}$d. D) Sp$^{2}$d. Show Answer Correct Answer: C) Sp$^{3}$d. 25. What was the name of the combination of chlorine gas and carbon monoxide gas that was 18 times more powerful than Chlorine? A) Mustard. B) DiPhosgene. C) Phosgene. D) Chlorine 3. Show Answer Correct Answer: C) Phosgene. ← 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