This quiz works best with JavaScript enabled. Home > Cbse > Class 12 > Science > Chemistry Part Ii > Class 12 Chemistry (Part Ii) Chapter 7 P Block Elements – Quiz 11 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Chemistry (Part Ii) Chapter 7 P Block Elements Quiz 11 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which Group 15 element is commonly used in fertilizers? A) Arsenic. B) Phosphorus. C) Boron. D) Nitrogen. Show Answer Correct Answer: D) Nitrogen. 2. What is the relationship between group number and valence electrons in p-block elements? A) The group number reflects the total number of electrons in p-block elements. B) The group number determines the atomic mass of p-block elements. C) The group number indicates the number of valence electrons in p-block elements. D) Valence electrons in p-block elements are constant across all groups. Show Answer Correct Answer: C) The group number indicates the number of valence electrons in p-block elements. 3. In OF$_{2}$ the oxidation state of oxygen is A) +2. B) -1. C) -2. D) 0. Show Answer Correct Answer: A) +2. 4. Zinc on reaction with dilute HNO3 gives x and zinc onreaction with concentrated HNO3 gives y. Identify x and y. A) X = N2O, y = NO2. B) X = NO2, y = N2O. C) X = N2O, y = NO. D) X = NO, y = NO2. Show Answer Correct Answer: A) X = N2O, y = NO2. 5. Which of the following elements has a greater tendency to form chain of bonds with itself or with other atoms? A) B. B) C. C) O. D) N. Show Answer Correct Answer: B) C. 6. Ammonia is prepared by A) Contact process. B) Haber process. C) Ostwald process. D) None of the above. Show Answer Correct Answer: B) Haber process. 7. The oxidation state of N is highest in A) N$_{2}$H$_{4}$. B) N$_{3}$H. C) NH$_{3}$. D) NH$_{2}$OH. Show Answer Correct Answer: B) N$_{3}$H. 8. A brown ring is formed in the ring test for NO$_{3}$$^{-}$ion. It is due to the formation of A) FeSO$_{4}$.NO$_{2}$. B) [Fe(H$_{2}$O)$_{5}$ (NO)]$^{2+}$. C) FeSO$_{4}$.HNO$_{3}$. D) [Fe(H$_{2}$O)$_{4}$(NO)$_{2}$]$^{2+}$. Show Answer Correct Answer: B) [Fe(H$_{2}$O)$_{5}$ (NO)]$^{2+}$. 9. Boron halides behave as Lewis acids because they A) Are ionic compounds. B) Have a lone pair of electrons on the B atom. C) Have only six electron in the valence shell. D) Are covalent compounds. Show Answer Correct Answer: C) Have only six electron in the valence shell. 10. No. of electrons involved in bonding in diborane molecule? A) 13. B) 12. C) 10. D) 11. Show Answer Correct Answer: B) 12. 11. The Modern Periodic Table of Elements is arranged by A) Number of isotopes. B) Atomic number. C) Valence electrons. D) Atomic mass. Show Answer Correct Answer: B) Atomic number. 12. A gas (X) is obtained when copper reacts with dil. HNO$_{3}$. The gas thus formed reacts with oxygen to given brown fumes of (Y). (Y) when dissolved in when gives an important acid (Z) respectively are A) NO$_{2}$;NO;HNO$_{3}$. B) NO;NO$_{2}$;HNO$_{3}$. C) NO;N$_{2}$O;HNO$_{3}$. D) NO$_{2}$;NO;HNO$_{2}$. Show Answer Correct Answer: B) NO;NO$_{2}$;HNO$_{3}$. 13. Silver nitrate is added to an aqueous solution containing Br$^{-}$ to give a precipitate X, which is then tested for its solubility in concentrated ammonia. which of the following correctly describes the the colour of X and its solubility in ammonia. A) Cream slightly soluble. B) Yellow insoluble. C) White insoluble. D) White slightly soluble. Show Answer Correct Answer: A) Cream slightly soluble. 14. Stable oxides of carbon are A) CO, C3O2. B) C2O. C) C2O, C3O2. D) CO, CO2. Show Answer Correct Answer: D) CO, CO2. 15. Which element in Group 15 is known for its allotropes? A) Phosphorus. B) Antimony. C) Bismuth. D) Arsenic. Show Answer Correct Answer: A) Phosphorus. 16. Assertion ; Ozone layer in the upper region of atmosphere protects earth from UV radiations of sun Reason; Ozone is a powerful oxidizing agent as compared to oxygen A) Both assertion and reason correct. B) Both assertion and reason not correct. C) Both assertion and reason correct, and reason is correct explanation for assertion. D) Both assertion and reason correct, and reason is notcorrect explanation for assertion. Show Answer Correct Answer: D) Both assertion and reason correct, and reason is notcorrect explanation for assertion. 17. The correct order of atomic size of group 13 A) B>Ga B) B C) B D) B>Al Show Answer Correct Answer: B) B 18. Acidity of diprotic acids in aqueous solutions increases in the order A) H2Te < H2S < H2Se. B) H2Se < H2Te < H2S. C) H2Se < H2S < H2Te. D) H2S < H2Se < H2Te. Show Answer Correct Answer: D) H2S < H2Se < H2Te. 19. What is the element name of this symbol Xe? A) Xenoms. B) Xeinon. C) Xenon. D) Xennon. Show Answer Correct Answer: C) Xenon. 20. States of group 17 elements are ..... A) Fluorine-liquid, chlorine-gas, Bromine liquid, iodine solid. B) Fluorine-gas, chlorine-gas, Bromine gas, iodine solid. C) Fluorine-gas, chlorine-gas, Bromine liquid, iodine gas. D) Fluorine-gas, chlorine-gas, Bromine liquid, iodine solid. Show Answer Correct Answer: D) Fluorine-gas, chlorine-gas, Bromine liquid, iodine solid. 21. Which of the following is not hydrolysed? A) SbCl3. B) PF3. C) NF3. D) ASCl3. Show Answer Correct Answer: C) NF3. 22. Which of the following is isoelectronic pair? A) ICl$_{2}$, ClO$_{2}$. B) O$_{3}$, CN$^{-}$. C) ClO$_{2}$, BrF. D) BrO$_{2}$$^{-}$, BrF$_{2}$$^{+}$. Show Answer Correct Answer: D) BrO$_{2}$$^{-}$, BrF$_{2}$$^{+}$. 23. Hybridisation and shape of PCl$_{3 }$are A) Sp$^{3 }$and tetrahedral. B) Sp$^{3 }$and linear. C) Sp$^{3}$d and linear. D) Sp$^{3}$ pyramidal. Show Answer Correct Answer: D) Sp$^{3}$ pyramidal. 24. The geometry and hybridization in the central atom of IF$_{7}$ are respectively A) Octahedral and sp$^{3}$d$^{3}$. B) Trigonal bipyramidal and sp$^{3}$d$^{2}$. C) Pentagonal bipyramidall and sp$^{3}$d$^{3}$. D) Octahedral and sp$^{3}$d$^{3}$. Show Answer Correct Answer: C) Pentagonal bipyramidall and sp$^{3}$d$^{3}$. 25. Choose which of the following position is correct for Neon (z = 10) A) Period:2Group:17p-block. B) Period:2Group:18s-block. C) Period:2Group:18p-block. D) None of the above. Show Answer Correct Answer: C) Period:2Group:18p-block. 26. Which element is essentially present in pseudo halogens? A) Oxygen. B) Nitrogen. C) Carbon. D) Halogen. Show Answer Correct Answer: B) Nitrogen. 27. Which statement about metalloids in the p-block is incorrect? A) Metalloids, such as antimony (Sb) and tellurium (Te), show a mix of metallic and non-metallic properties. B) Arsenic (As) is a p-block metalloid that exhibits semiconducting properties. C) All p-block metalloids are more metallic than silicon (Si), reflecting their position on the periodic table. D) None of the above. Show Answer Correct Answer: C) All p-block metalloids are more metallic than silicon (Si), reflecting their position on the periodic table. 28. Both copper has d$^{10}$ electronic configuration in ground state but it is not considered as transition element because A) Its last electron occupy s orbital. B) Copper has partially filled d orbital in its most common oxidation Cu$^{+}$ state. C) It forms coloured compounds. D) Copper has partially filled d orbital in its most common oxidation Cu$^{+2}$ state. Show Answer Correct Answer: D) Copper has partially filled d orbital in its most common oxidation Cu$^{+2}$ state. 29. What is the number of valence electrons in aluminum? A) 3e-. B) 1 e-. C) 2e-. D) 4e-. Show Answer Correct Answer: A) 3e-. 30. Lab method to prepare N2 A) Thermal decomposition of Ammonium dichromate. B) Thermal decomposition of Sodium Azide. C) Double displacement of NH4Cl+NaNO2. D) Double displacement of aqueous solution of NH4Cl+NaNO2. Show Answer Correct Answer: D) Double displacement of aqueous solution of NH4Cl+NaNO2. 31. Which element cannot be extracted from its ore by reduction with carbon? A) Iron. B) Aluminium. C) Copper. D) Lead. Show Answer Correct Answer: B) Aluminium. 32. What is the name of the following ion?N $^{3-}$ A) Nitride ion. B) Nitrite ion. C) Nitrogen(III) ion. D) Nitrate ion. Show Answer Correct Answer: A) Nitride ion. 33. What is the common oxidation state exhibited by Group 15 elements? A) 0. B) +3. C) -3. D) -1. Show Answer Correct Answer: C) -3. 34. The geometry of a complex species can be understood from the knowledge of type of hybridization of orbitals of the central atom. The hybridization of orbitals of the central atom in [Be(OH)4]-and the geometry of the complex are respectively A) Sp3, tetrahedral. B) Sp3, square planar. C) Dsp2, square planar. D) Sp3d2, octahedral. Show Answer Correct Answer: A) Sp3, tetrahedral. 35. The only one oxoacid of fluorine is A) HOFO. B) HOF. C) HOF2. D) HOF3. Show Answer Correct Answer: B) HOF. 36. Which of the following is dibasic acid? A) Ortho Phosphorus acid. B) Hypophosphorus acid. C) Orthophosphoric acid. D) Pyrophosphoric acid. Show Answer Correct Answer: A) Ortho Phosphorus acid. 37. One example of pseudohalogen is A) (CN)2. B) SO3. C) ICl. D) CO2. Show Answer Correct Answer: A) (CN)2. 38. Which has highest value of electrical conductivity in period 3 A) Si. B) Al. C) Mg. D) P. Show Answer Correct Answer: B) Al. 39. The most stable oxidation state of Ti is-: A) +3. B) +2. C) +5. D) +4. Show Answer Correct Answer: D) +4. 40. Which of the following is a coloured ions A) Ni$^{2+}$. B) Sc$^{3+}$. C) Ag$^{+}$. D) Ti$^{4+}$. Show Answer Correct Answer: A) Ni$^{2+}$. 41. Which of the following elements exists in +1 oxidation state rather than +3 due to the inert pair effect? A) Boron. B) Silicon. C) Thallium. D) Nitrogen. Show Answer Correct Answer: C) Thallium. 42. The element which forms oxides in all oxidation states +I to + V is A) N. B) P. C) As. D) Sb. Show Answer Correct Answer: A) N. 43. Which one is used in the manufacture of bleaches A) Hydrochloric caid. B) Sodium hydroxide. C) Silver iodide. D) Hydrogen. Show Answer Correct Answer: B) Sodium hydroxide. 44. What is the atomic weight of aluminum? A) 26.98. B) 20.18. C) 35.45. D) 79.90. Show Answer Correct Answer: A) 26.98. 45. Which element in group 15 has the highest metallic character? A) Arsenic. B) Phosphorus. C) Antimony. D) Nitrogen. Show Answer Correct Answer: C) Antimony. 46. Which of the following is used to prepare Cl$_{2}$ gas at room temperature from conc. HCl? A) H$_{2}$S. B) Cr$_{2}$O$_{3}$. C) KMnO$_{4}$. D) NaOH. Show Answer Correct Answer: C) KMnO$_{4}$. 47. Sulphur molecule is A) Tetratomic. B) Octa-atomic. C) Triatomic. D) Diatomic. Show Answer Correct Answer: B) Octa-atomic. 48. As we move down the group reducing character of group 15 elements A) Increases. B) Decreases. C) Remain constant. D) None of the above. Show Answer Correct Answer: A) Increases. 49. Which of the following elements will form giant covalent oxide? A) Cl. B) Na. C) Mg. D) Si. Show Answer Correct Answer: D) Si. 50. Which alkali metal hydroxide is the strongest base? A) CsOH. B) KOH. C) NaOH. D) LiOH. Show Answer Correct Answer: A) CsOH. 51. What is the atomic number of bromine? A) 10. B) 17. C) 13. D) 35. Show Answer Correct Answer: D) 35. 52. Diborane is ..... A) B$_{4}$H$_{10}$. B) B$_{2}$H$_{3}$. C) B$_{2}$H$_{8}$. D) B$_{2}$H$_{6}$. Show Answer Correct Answer: D) B$_{2}$H$_{6}$. 53. Fill in the blanks:i) Ca$_{2}$P$_{2}$ +6HCl $\rightarrow$ 3CaCl$_{2}$+2 pii) P$_{4}$ + 3NaOH+ 3H$_{2}$O $\rightarrow$ q +3NaH$_{2}$PO$_{2}$iii) PH$_{4}$I + KOH $\rightarrow$ KI + H$_{2}$O+ rp, q & r respectively are A) PH$_{3}$, H$_{3}$PO$_{3}$PI$_{3}$. B) PCl$_{3}$, PH$_{3}$, P$_{4}$O$_{6}$. C) PCl$_{3}$, H$_{3}$PO$_{4, }$PH$_{3}$. D) PH$_{3}$, PH$_{3}$, PH$_{3}$. Show Answer Correct Answer: D) PH$_{3}$, PH$_{3}$, PH$_{3}$. 54. Which of the following pair behaves as strongest and weakest base hydride respectively NH$_{3}$, PH$_{3}$, AsH$_{3}$;, SbH$_{3}$, BiH$_{3}$? A) NH$_{3}$, BiH$_{3}$. B) NH$_{3}$, PH$_{3}$;. C) BiH$_{3, }$AsH$_{3}$. D) PH$_{3}$, BiH$_{3}$. Show Answer Correct Answer: A) NH$_{3}$, BiH$_{3}$. 55. What is the removal of oxygen from a substance called? A) Electrolysis. B) Reduction. C) Oxidation. D) Extraction. Show Answer Correct Answer: B) Reduction. 56. Which element in Group 14 is a metalloid? A) Carbon (C). B) Lead (Pb). C) Tin (Sn). D) Silicon (Si) and Germanium (Ge). Show Answer Correct Answer: D) Silicon (Si) and Germanium (Ge). 57. The most abundant inert gas in the atmosphere is A) He. B) Ar. C) Ne. D) Xe. Show Answer Correct Answer: B) Ar. 58. What are the common oxidation states of Group 13 elements? A) +3 and +1. B) +2 and +4. C) +1 and-1. D) +3 and 0. Show Answer Correct Answer: A) +3 and +1. 59. What is the charge on the chlorate ion? A) -1. B) +1. C) -2. D) +2. Show Answer Correct Answer: A) -1. 60. Maximum oxidation state of group 15 elements A) +5. B) +3. C) +6. D) +4. Show Answer Correct Answer: A) +5. ← PreviousNext →Related QuizzesScience QuizzesClass 12 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 8 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books