This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Chemistry (Part Ii) Chapter 7 P Block Elements – Quiz 32 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Chemistry (Part Ii) Chapter 7 P Block Elements Quiz 32 (11 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. During decolourisation of acidified KMnO$_{4 }$solution, oxidation state of s changes from ..... to ..... A) +2 to +4. B) -2 to +4. C) +4 to +6. D) +6 to +4. Show Answer Correct Answer: C) +4 to +6. 2. Alkali metals are usually stored in ..... A) Jar. B) Kerosene. C) Plastic bag. D) Bottle. Show Answer Correct Answer: B) Kerosene. 3. Fill in the blanks by choosing the appropriate option. Conc.H$_{2}$SO$_{4}$ chars paper, wood and sugar by removing (i)From them. It is also known as (ii). It is manufactured by (iii) process. It is a strong (iv) and (v) acid. A) H$_{2}$O-oil of vitriol-contact-oxidizing-dibasic. B) O$_{2-}$oil of vitriol-oleum-dehydrating-monobasic. C) H$_{2}$O-oil of olay-solvay-dehydrating-dibasic. D) SO$_{2-}$oil of winter-contact-oxidizing-monobasic green. Show Answer Correct Answer: A) H$_{2}$O-oil of vitriol-contact-oxidizing-dibasic. 4. Mark the correct statements about halogens. A) Electron affinity of halogen is in the order F>Cl>Br>I. B) HF is the strongest hydrohalic acid. C) F$_{2}$ has lower bond dissociation energy than Cl$_{2}$. D) All halogens show variable oxidation states. Show Answer Correct Answer: C) F$_{2}$ has lower bond dissociation energy than Cl$_{2}$. 5. Transition metals form alloys with each other due to A) Large difference in their size. B) Presence of partially filled d-subshell. C) Low difference in atomic sizes. D) High charge/size ratio. Show Answer Correct Answer: C) Low difference in atomic sizes. 6. Which Group 15 element is essential for all living organisms? A) Phosphorus. B) Nitrogen. C) Oxygen. D) Sulfur. Show Answer Correct Answer: B) Nitrogen. 7. Which group of elements is known for having the lowest electronegativity in the periodic table? A) Group 1. B) Group 2. C) Group 13. D) Group 14. Show Answer Correct Answer: A) Group 1. 8. In contact process, maximum yield of SO$_{3 }$is obtained at A) High temperature and high pressure. B) Low temperature and high pressure. C) Low temperature and low pressure. D) High temperature and low pressure. Show Answer Correct Answer: B) Low temperature and high pressure. 9. Which alkali metal is least reactive? A) Rubidium. B) Lithium. C) Sodium. D) Potassium. Show Answer Correct Answer: B) Lithium. 10. The boiling points of hydridehahahs of group 16 are in the order A) H$_{2}$O > H$_{2}$Te > H$_{2}$S > H$_{2}$Se. B) H$_{2}$O > H$_{2}$S > H$_{2}$Se > H$_{2}$Te. C) H$_{2}$O > H$_{2}$Te > H$_{2}$Se > H$_{2}$S. D) None of these. Show Answer Correct Answer: C) H$_{2}$O > H$_{2}$Te > H$_{2}$Se > H$_{2}$S. 11. What are representative elements in the periodic table? A) Representative elements are found in groups 3 to 12 of the periodic table. B) Representative elements include only the noble gases and halogens. C) Representative elements are exclusively metals located in the center of the table. D) Representative elements are the elements in groups 1, 2, and 13 to 18 of the periodic table. Show Answer Correct Answer: D) Representative elements are the elements in groups 1, 2, and 13 to 18 of the periodic table. ← PreviousRelated 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