{"id":720965,"date":"2024-06-11T15:52:53","date_gmt":"2024-06-11T10:22:53","guid":{"rendered":"https:\/\/infinitylearn.com\/surge\/?p=720965"},"modified":"2025-06-24T14:45:03","modified_gmt":"2025-06-24T09:15:03","slug":"class-12-chemistry-p-block-elements-mcq-with-answers","status":"publish","type":"post","link":"https:\/\/infinitylearn.com\/surge\/mcqs\/class-12-chemistry-p-block-elements\/","title":{"rendered":"Class 12 Chemistry P Block Elements MCQ with Answers"},"content":{"rendered":"<p><strong><a href=\"https:\/\/infinitylearn.com\/surge\/chemistry\/p-block-elements\/\">P-block elements<\/a><\/strong> are those in which the last electron enters one of the three p-orbitals of their shells. The p-subshell has three p-orbitals, each holding two electrons, resulting in six groups of p-block elements. These include some metals, all non-metals, and metalloids. P-block elements are found in groups 13 to 16 of the periodic table, excluding helium. These elements are known for their excellent conductivity.<\/p>\n<p>In this article, we will cover multiple-choice questions (MCQs) related to P-block elements, including their answers and explanations. This will help you revise key points and thoroughly understand the concept of p-block elements. <strong>Class 12 MCQ for P block elements<\/strong> will be included to assist students in preparing effectively.<\/p>\n<p>Elements where the final electron enters a p-orbital of their shell are called P block elements. Each p-subshell has three p-orbitals, accommodating two electrons each, thus forming six groups of p-block elements.<\/p>\n<p><strong>P block elements<\/strong> often lose an electron easily, making them good conductors of electricity and heat. For instance, gallium, a P-block element, can melt in your hand. Silicon is a crucial metalloid in the p-block group, essential for making glass.<\/p>\n<p>Refer to the CBSE Class 12 Chemistry P Block Elements MCQs provided below. These MCQs, along with answers, are available for free download. They are prepared as per the latest syllabus, CBSE books, and examination patterns suggested by CBSE, NCERT, and KVS. Practicing these <strong>p block elements class 12 MCQ<\/strong> can help Class 12 Chemistry students score higher marks.<\/p>\n<p>The P Block Elements Class 12 Chemistry students should refer to the following multiple-choice questions with answers for Chapter 7: The P Block Elements. These MCQs are important for exams and can help you achieve good marks.<\/p>\n<h2>Class 12 Chemistry MCQ P-Block Elements with Answers<\/h2>\n<p><strong>Ques 1. Boron shows diagonal relation with:<\/strong><\/p>\n<p>(a) Al<\/p>\n<p>(b) C<\/p>\n<p>(c) Si<\/p>\n<p>(d) Sn<\/p>\n<p><strong>Answer: (c) Si<\/strong><\/p>\n<p><strong>Ques 2. Catenation property is maximum in:<\/strong><\/p>\n<p>(a) phosphorus<\/p>\n<p>(b) carbon<\/p>\n<p>(c) sulphur<\/p>\n<p>(d) zinc<\/p>\n<p><strong>Answer: (b) Carbon<\/strong><\/p>\n<p><strong>Ques 3. Which one of the following is an electrophilic reagent?<\/strong><\/p>\n<p>(a) BF<sub>3<\/sub><\/p>\n<p>(b) KH<sup>3<\/sup><\/p>\n<p>(c) H<sub>2<\/sub>O<\/p>\n<p>(d) None of these<\/p>\n<p><strong>Answer: (a) BF<sub>3<\/sub><\/strong><\/p>\n<p><strong>Ques 4. Which one of the following is the strongest Lewis acid?<\/strong><\/p>\n<p>(a) BF<sub>3<\/sub><\/p>\n<p>(b) BCl<sub>3<\/sub><\/p>\n<p>(c) BBr<sub>3<\/sub><\/p>\n<p>(d) Bl<sub>3<\/sub><\/p>\n<p><strong>Answer: (b) BCl<sub>3<\/sub><\/strong><\/p>\n<p><strong>Ques 5. Which of the following is the strongest oxidizing agent?<\/strong><\/p>\n<p>(a) F<sub>2<\/sub><\/p>\n<p>(b) Cl<sub>2<\/sub><\/p>\n<p>(c) l<sub>2<\/sub><\/p>\n<p>(d) Br<sub>2<\/sub><\/p>\n<p><strong>Answer: (a) F<sub>2<\/sub><\/strong><\/p>\n<p style=\"text-align: center;\"><em><strong>Also Check: <a href=\"https:\/\/infinitylearn.com\/surge\/study-materials\/the-p-block-elements\/class-12\/notes-chemistry\/chapter-7\/\">P- Block Elements Class 12 Chemistry Notes<\/a><\/strong><\/em><\/p>\n<p><strong>Ques 6. The number of P-O-P bonds in cyclic metaphosphoric acid is:<\/strong><\/p>\n<p>(a) 2<\/p>\n<p>(b) 0<\/p>\n<p>(c) 3<\/p>\n<p>(d) 4<\/p>\n<p><strong>Answer: (c) 3<\/strong><\/p>\n<p><strong>Ques 7. Which oxide of nitrogen is obtained on heating ammonium nitrate at 250\u00b0C?<\/strong><\/p>\n<p>(a) Nitric oxide<\/p>\n<p>(b) Nitrous oxide<\/p>\n<p>(c) Nitrogen dioxide<\/p>\n<p>(d) Dinitrogen tetroxide<\/p>\n<p><strong>Answer: (b) Nitrous oxide<\/strong><\/p>\n<p><strong>Ques 8. Atomicity of phosphorus is:<\/strong><\/p>\n<p>(a) 1<\/p>\n<p>(b) 2<\/p>\n<p>(c) 3<\/p>\n<p>(d) 4<\/p>\n<p><strong>Answer: (d) 4<\/strong><\/p>\n<p><strong>Ques 9. The hybridisation of sulphur in sulphur hexafluoride is:<\/strong><\/p>\n<p>(a) sp<sup>3<\/sup>d<\/p>\n<p>(b) sp<sup>3<\/sup>d<sup>2<\/sup><\/p>\n<p>(c) sp<sup>3<\/sup>d<sup>3<\/sup><\/p>\n<p>(d) sp<sup>3<\/sup><\/p>\n<p><strong>Answer: (b) sp<sup>3<\/sup>d<sup>2<\/sup><\/strong><\/p>\n<p><strong>Ques 10. Which of the following is not correctly matched?<\/strong><\/p>\n<p>(a) PCl<sub>5<\/sub> &#8211; sp<sup>3<\/sup>d hybridisation<\/p>\n<p>(b) PCl<sub>5<\/sub> &#8211; sp<sup>3<\/sup> hybridisation<\/p>\n<p>(c) PCl<sub>5<\/sub> (solid) &#8211; [PtCl<sub>4<\/sub>]<sup>\u2013<\/sup> [PtCl<sub>3<\/sub>]<sup>\u2013<\/sup><\/p>\n<p>(d) H<sub>3<\/sub>PO<sub>3<\/sub> <sup>&#8211;<\/sup> tribasic<\/p>\n<p><strong>Answer: (d) H<sub>3<\/sub>PO<sub>3<\/sub> <sup>&#8211;<\/sup> tribasic<\/strong><\/p>\n<p><strong>Ques 11. Which of the following is a tetrabasic acid?<\/strong><\/p>\n<p>(a) Hypo phosphorus acid<\/p>\n<p>(b) Metaphosphoric acid<\/p>\n<p>(c) Pyrophosphoric acid<\/p>\n<p>(d) Orthophosphoric acid<\/p>\n<p><strong>Answer: (c) Pyrophosphoric acid<\/strong><\/p>\n<p><strong>Ques 12. Which of the following has maximum ionisation potential?<\/strong><\/p>\n<p>(a) Al<\/p>\n<p>(b) P<\/p>\n<p>(c) Si<\/p>\n<p>(d) Mg<\/p>\n<p><strong>Answer: (b) P<\/strong><\/p>\n<p><strong>Ques 13. An element found from seawater is:<\/strong><\/p>\n<p>(a) magnesium<\/p>\n<p>(b) Sodium<\/p>\n<p>(c) Iodine<\/p>\n<p>(d) None of these<\/p>\n<p><strong>Answer: (c) Iodine<\/strong><\/p>\n<p><strong>Ques 14. The shape of XeF<sub>4<\/sub> is:<\/strong><\/p>\n<p>(a) tetrahedral<\/p>\n<p>(b) square planar<\/p>\n<p>(c) pyramidal<\/p>\n<p>(d) linear<\/p>\n<p><strong>Answer: (b) square planar<\/strong><\/p>\n<p><strong>Ques 15. Which one of the following is least basic?<\/strong><\/p>\n<p>(a) NCl<sub>3<\/sub><\/p>\n<p>(b) NBr<sub>3<\/sub><\/p>\n<p>(c) NI<sub>3<\/sub><\/p>\n<p>(d) NF<sub>3<\/sub><\/p>\n<p><strong>Answer: (c) NI<sub>3<\/sub><\/strong><\/p>\n<p><strong>Ques 16. Which of the following compounds can be used to obtain free nitrogen?<\/strong><\/p>\n<p>(a) NaNO<sub>2<\/sub><\/p>\n<p>(b) HNO<sub>2<\/sub><\/p>\n<p>(c) HNO<sub>3<\/sub><\/p>\n<p>(d) Ba<sub>3<\/sub>N<sub>2<\/sub><\/p>\n<p><strong>Answer: (a) NaNO<sub>2<\/sub><\/strong><\/p>\n<p><strong>Ques 17. How many stable isotopes does the nitrogen atom have?<\/strong><\/p>\n<p>(a) 16<\/p>\n<p>(b) 20<\/p>\n<p>(c) 2<\/p>\n<p>(d) 3<\/p>\n<p><strong>Answer: (c) 2<\/strong><\/p>\n<p><strong>Ques 18. Nitrogen atom is represented at 147N. How many electrons does it need to attain the noble gas configuration?<\/strong><\/p>\n<p>(a) 1<\/p>\n<p>(b) 2<\/p>\n<p>(c) 3<\/p>\n<p>(d) 4<\/p>\n<p><strong>Answer: (c) 3<\/strong><\/p>\n<p><strong>Ques 19. Why does nitrogen show anomalous properties with respect to other elements in group 15?<\/strong><\/p>\n<p>(a) Nitrogen has low ionization enthalpy<\/p>\n<p>(b) Nitrogen atom has high inter-electronic repulsions<\/p>\n<p>(c) Nitrogen molecule bears a triple bond<\/p>\n<p>(d) Absence of vacant d-orbitals<\/p>\n<p><strong>Answer: (d) Absence of vacant d-orbitals<\/strong><\/p>\n<p style=\"text-align: center;\"><em><strong>Also Check: <a href=\"https:\/\/infinitylearn.com\/surge\/study-material\/important-questions\/class-12\/chemistry\/chapter-7\/the-p-block-elements\/class-12\/important-questions\/\">Important Questions for Class 12 Chemistry Chapter 7 The p-Block Elements<\/a><\/strong><\/em><\/p>\n<p><strong>Ques 20. Why is nitrogen preferably used in welding process and cooling of substances?<\/strong><\/p>\n<p>(a) It\u2019s a gas and can easily be handled<\/p>\n<p>(b) It has an extremely low freezing point<\/p>\n<p>(c) It is an inert gas<\/p>\n<p>(d) It is non-toxic<\/p>\n<p><strong>Answer: (c) It is an inert gas<\/strong><\/p>\n<p><strong>Ques 21. Which oxide of nitrogen is released from car engines?<\/strong><\/p>\n<p>(a) Nitrogen dioxide<\/p>\n<p>(b) Nitric oxide<\/p>\n<p>(c) Nitrous oxide<\/p>\n<p>(d) Nitrogen tetroxide<\/p>\n<p><strong>Answer: (b) Nitric oxide<\/strong><\/p>\n<p><strong>Ques 22. What is the name of the natural process that is responsible for replenishing N2 back in the atmosphere from NO<sub>3<\/sub><sup>\u2013<\/sup>?<\/strong><\/p>\n<p>(a) Nitrification<\/p>\n<p>(b) Nitrogen fixation<\/p>\n<p>(c) De-nitrification<\/p>\n<p>(d) Nitrate fixation<\/p>\n<p><strong>Answer: (c) De-nitrification<\/strong><\/p>\n<p><strong>Ques 23. When liquid nitrogen is poured onto the hand, it slips away without affecting the hand actually. What is this phenomenon called?<\/strong><\/p>\n<p>(a) Kaye effect<\/p>\n<p>(b) Kinetic isotope effect<\/p>\n<p>(c) Kondo effect<\/p>\n<p>(d) Leiden frost effect<\/p>\n<p><strong>Answer: (d) Leiden frost effect<\/strong><\/p>\n<p><strong>Ques 24. Which group does the name \u2018pnictogens\u2019 refer to?<\/strong><\/p>\n<p>(a) Group 11<\/p>\n<p>(b) Group 13<\/p>\n<p>(c) Group 15<\/p>\n<p>(d) Group 14<\/p>\n<p><strong>Answer: (c) Group 15<\/strong><\/p>\n<p><strong>Ques 25. How many allotropes does nitrogen have?<\/strong><\/p>\n<p>(a) Zero<\/p>\n<p>(b) One<\/p>\n<p>(c) Two<\/p>\n<p>(d) Three<\/p>\n<p><strong>Answer: (a) Zero<\/strong><\/p>\n<p><strong>Ques 26. With regard to nitrogen, which of the following statements is incorrect?<\/strong><\/p>\n<p>(a) It has an extremely high electronegativity.<\/p>\n<p>(b) D-orbitals are available for use in bonding applications.<\/p>\n<p>(c) It is a typical non-metallic compound.<\/p>\n<p>(d) It has a small molecular weight.<\/p>\n<p><strong>Answer: (b) D-orbitals are available for use in bonding applications.<\/strong><\/p>\n<p><strong>Ques 27. The elements of group 15 are collectively referred to as \u2013<\/strong><\/p>\n<p>(a) pnicogens<\/p>\n<p>(b) pnicopens<\/p>\n<p>(c) nicopen<\/p>\n<p>(d) None of these<\/p>\n<p><strong>Answer: (a) pnicogens<\/strong><\/p>\n<p style=\"text-align: center;\"><em><strong>Also Check: <a href=\"https:\/\/infinitylearn.com\/surge\/study-materials\/ncert-exemplar-solutions\/class-12\/chemistry\/chapter-7-the-p-block-elements\/\">NCERT Exemplar Solutions for Class 12 Chemistry Chapter 7 \u2013 The p-Block Elements<\/a><\/strong><\/em><\/p>\n<p><strong>Ques 28. The ionic radii (in ) of As<sub>3<\/sub><sup>+<\/sup>, Sb<sub>3<\/sub><sup>+<\/sup>, and Bi<sub>3<\/sub><sup>+<\/sup> are in the following order:<\/strong><\/p>\n<p>(a) As<sub>3<\/sub><sup>+<\/sup> is superior to Sb<sub>3<\/sub><sup>+<\/sup> and Bi<sub>3<\/sub><sup>+<\/sup>.<\/p>\n<p>(b) Sb<sub>3<\/sub><sup>+<\/sup> is superior to Bi<sub>3<\/sub><sup>+<\/sup> and As<sub>3<\/sub><sup>+<\/sup>.<\/p>\n<p>(c) Bi<sub>3<\/sub><sup>+<\/sup> is superior to As<sub>3<\/sub><sup>+<\/sup> and Sb<sub>3<\/sub><sup>+<\/sup>.<\/p>\n<p>(d) Bi<sub>3<\/sub><sup>+<\/sup> is preferable to Sb<sub>3<\/sub><sup>+<\/sup> and As<sub>3<\/sub><sup>+<\/sup>.<\/p>\n<p><strong>Answer: (d) Bi<sub>3<\/sub><sup>+<\/sup> is preferable to Sb<sub>3<\/sub><sup>+<\/sup> and As<sub>3<\/sub><sup>+<\/sup>.<\/strong><\/p>\n<p><strong>Ques 29. Which of the following elements has the highest metallic content?<\/strong><\/p>\n<p>(a) P<\/p>\n<p>(b) As<\/p>\n<p>(c) Sb<\/p>\n<p>(d) Bi<\/p>\n<p><strong>Answer: (d) Bi<\/strong><\/p>\n<p><strong>Ques 30. In the elemental state, which of the following elements from group 15 forms metallic bonds?<\/strong><\/p>\n<p>(a) As<\/p>\n<p>(b) P<\/p>\n<p>(c) Sb<\/p>\n<p>(d) Bi<\/p>\n<p><strong>Answer: (d) Bi<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>P-block elements are those in which the last electron enters one of the three p-orbitals of their shells. The p-subshell [&hellip;]<\/p>\n","protected":false},"author":53,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_focuskw":"p block elements mcq","_yoast_wpseo_title":"Class 12 Chemistry P Block Elements MCQ with Answers | Infinity Learn","_yoast_wpseo_metadesc":"Practice Class 12 Chemistry P Block Elements MCQs with answers to score high in exams. Download free PDF for CBSE syllabus and exam preparation.","custom_permalink":"mcqs\/class-12-chemistry-p-block-elements\/"},"categories":[11038],"tags":[],"table_tags":[],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v17.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Class 12 Chemistry P Block Elements MCQ with Answers | Infinity Learn<\/title>\n<meta name=\"description\" content=\"Practice Class 12 Chemistry P Block Elements MCQs with answers to score high in exams. 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