This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Chemistry (Part Ii) Chapter 7 P Block Elements – Quiz 17 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Chemistry (Part Ii) Chapter 7 P Block Elements Quiz 17 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The elements collectively known as chalcogens are A) F, Cl, Br, I. B) C, Si, Ge. C) N, P, S. D) O, S, Se, Te. Show Answer Correct Answer: D) O, S, Se, Te. 2. Pick out the correct statement A) Chlorine water on standing loses its yellow colour due to the formation of HBr. B) Bleaching property of chlorine is due to the formation of nascent oxygen. C) Chlorine converts SO2 to SO3. D) The bleaching effect of chlorine is temporary. Show Answer Correct Answer: B) Bleaching property of chlorine is due to the formation of nascent oxygen. 3. A group 15 element, which is a metal and forms a hydride with strongest reducing power among group 15 hydrides. The element is A) Sb. B) P. C) As. D) Bi. Show Answer Correct Answer: D) Bi. 4. How does the atomic radius change as you move down a group in the p block? A) The atomic radius first decreases and then increases as you move down a group in the p block. B) The atomic radius increases as you move down a group in the p block. C) The atomic radius decreases as you move down a group in the p block. D) The atomic radius remains constant as you move down a group in the p block. Show Answer Correct Answer: B) The atomic radius increases as you move down a group in the p block. 5. The shape of ICl is A) Trigonal bipyramidal. B) Tetrahedral. C) Trigonal planar. D) Linear. Show Answer Correct Answer: D) Linear. 6. Which element from Group 16 is vital for the formation of amino acids? A) Selenium. B) Oxygen. C) Sulfur. D) Tellurium. Show Answer Correct Answer: C) Sulfur. 7. How does the ionization energy vary in the p-block? A) Ionization energy increases across a period and decreases down a group in the p-block. B) Ionization energy increases down a group and decreases across a period in the p-block. C) Ionization energy decreases across a period and increases down a group in the p-block. D) Ionization energy remains constant across a period and decreases down a group in the p-block. Show Answer Correct Answer: A) Ionization energy increases across a period and decreases down a group in the p-block. 8. What is the significance of the hydrogen element in the context of s and p-block elements? A) Hydrogen is a noble gas that does not interact with other elements. B) Hydrogen is primarily found in the d-block of the periodic table. C) Hydrogen only forms compounds with metals and has no role in p-block chemistry. D) Hydrogen acts as a bridge between s and p-block elements, exhibiting properties of both and playing a crucial role in chemical reactions. Show Answer Correct Answer: D) Hydrogen acts as a bridge between s and p-block elements, exhibiting properties of both and playing a crucial role in chemical reactions. 9. Oxygen molecule is A) Diamagnetic with no-unpaired electron(s). B) Diamagnetic with two unpaired electrons. C) Paramagnetic with two unpaired electrons. D) Paramagnetic with no unpaired electron(s). Show Answer Correct Answer: C) Paramagnetic with two unpaired electrons. 10. In phosponitrolic compounds which element is absent A) Halogen. B) Nitrogen. C) Phosphorous. D) Oxygen. Show Answer Correct Answer: D) Oxygen. 11. Monoxides and dioxides of Group 14 elements in the Periodic Table show different acid-base properties. Which is an acidic oxide? A) GeO. B) PbO. C) SiO$_{2}$. D) SnO$_{2}$. Show Answer Correct Answer: C) SiO$_{2}$. 12. Which of the following hydrogen halides is most volatile? A) HF. B) HCl. C) HBr. D) HI. Show Answer Correct Answer: B) HCl. 13. What is the significance of the octet rule in p-block elements? A) The octet rule only applies to s-block elements and not to p-block elements. B) The octet rule dictates that p-block elements must always form ionic bonds. C) The octet rule is irrelevant to p-block elements and their properties. D) The octet rule helps explain the bonding and reactivity of p-block elements by guiding them to achieve a stable electron configuration. Show Answer Correct Answer: D) The octet rule helps explain the bonding and reactivity of p-block elements by guiding them to achieve a stable electron configuration. 14. Phosphorus burns in the presence of a limited supply of oxygen to form ..... A) No reaction occurs. B) P$_{2}$O$_{6}$. C) P$_{4}$O$_{10}$. D) P$_{4}$O$_{6}$. Show Answer Correct Answer: D) P$_{4}$O$_{6}$. 15. How do halogens typically react with alkali metals? A) Halogens react with alkali metals to create metallic bonds. B) Halogens typically react with alkali metals to form ionic compounds, such as salts. C) Halogens react with alkali metals to form gases. D) Halogens do not react with alkali metals at all. Show Answer Correct Answer: B) Halogens typically react with alkali metals to form ionic compounds, such as salts. 16. What is the nature of the oxides of nitrogen and phosphorus? A) Basic and neutral. B) Alkaline and acidic. C) Acidic and amphoteric. D) Neutral and amphoteric. Show Answer Correct Answer: C) Acidic and amphoteric. 17. What is the primary characteristic of Group 15 elements? A) They primarily form ionic compounds. B) They are all gases at room temperature. C) They exhibit multiple oxidation states and form covalent bonds. D) They have a fixed oxidation state of +3. Show Answer Correct Answer: C) They exhibit multiple oxidation states and form covalent bonds. 18. What will be the A and B in the following equations. 8NH$_{3}$ + Cl$_{2}$ (A) = 6NH$_{4}$Cl + N$_{2}$$_{ }$NH$_{3}$ + 3Cl$_{2 }$(B) = NCl$_{3 }$+ 3HCl A) A = Excess, B = Excess. B) A = Limited, B = Excess. C) A = Excess, B = Limited. D) A = Limited, B = Limited. Show Answer Correct Answer: B) A = Limited, B = Excess. 19. Which element is found in group 15 of the periodic table? A) Phosphorus. B) Hydrogen. C) Chlorine. D) Helium. Show Answer Correct Answer: A) Phosphorus. 20. Neutrals atoms electron configurations that end in s$^{2}$p$^{6}$$^{ }$in the highest energy level belong to which group? A) Noble Gases. B) Alkaline Earth Metals. C) Alkali Metals. D) Halogens. Show Answer Correct Answer: A) Noble Gases. 21. As going down Group 18, the atomic size of the atom ..... A) Increases. B) Decreases. C) Remain the same. D) None of the above. Show Answer Correct Answer: A) Increases. 22. Match the following(A) H$_{2}$SO$_{4 }$ (1) Highest electron gain enthalpy(B) CCl$_{3}$NO$_{2}$ (2) Chalcogen(C) Cl$_{2 }$ (3) Tear gas(D) Sulphur (4) Storage batteries A) A (4) B (3) C (1) D (2). B) A (3) B (4) C (1) D (2). C) A (4) B (1) C (2) D (3). D) A (2) B (1) C (3) D (4). Show Answer Correct Answer: A) A (4) B (3) C (1) D (2). 23. The structure of borazine is: A) Linear. B) Trigonal planar. C) Hexagonal ring. D) Octahedral. Show Answer Correct Answer: C) Hexagonal ring. 24. . Which of the following compounds has a bond angle close to 90$^{0 }$? a. NH$_{3}$ b. H$_{2}$S c. H$_{2}$O CH$_{4}$ A) NH$_{3}$. B) H$_{2}$S. C) H$_{2}$O. D) CH$_{4}$. Show Answer Correct Answer: B) H$_{2}$S. 25. Diborane formula A) B2H5. B) B2H7. C) B2H6. D) B6H6. Show Answer Correct Answer: D) B6H6. ← 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