This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Chemistry (Part Ii) Chapter 7 P Block Elements – Quiz 27 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Chemistry (Part Ii) Chapter 7 P Block Elements Quiz 27 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. ZnO + 2NaOH A) Na$_{2}$ZnO$_{2}$ + H$_{2}$O. B) Na$_{2}$ZnO$_{4}$ + H$_{2}$O. C) Na$_{2}$ZnO$_{2}$ + 2H$_{2}$O. D) Na$_{2}$ZnO$_{4}$ + 2H$_{2}$O. Show Answer Correct Answer: A) Na$_{2}$ZnO$_{2}$ + H$_{2}$O. 2. 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) White insoluble. B) Cream slightly soluble. C) White slightly soluble. D) Yellow insoluble. Show Answer Correct Answer: B) Cream slightly soluble. 3. Stable oxides of carbon are A) CO, CO2. B) CO, C3O2. C) C2O, C3O2. D) C2O. Show Answer Correct Answer: A) CO, CO2. 4. Which element in Group 15 is known for its allotropes? A) Bismuth. B) Antimony. C) Phosphorus. D) Arsenic. Show Answer Correct Answer: C) Phosphorus. 5. 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. 6. The correct order of atomic size of group 13 A) B B) B>Ga C) B D) B>Al Show Answer Correct Answer: A) B 7. Acidity of diprotic acids in aqueous solutions increases in the order A) H2S < H2Se < H2Te. B) H2Se < H2S < H2Te. C) H2Te < H2S < H2Se. D) H2Se < H2Te < H2S. Show Answer Correct Answer: A) H2S < H2Se < H2Te. 8. What is the element name of this symbol Xe? A) Xeinon. B) Xennon. C) Xenon. D) Xenoms. Show Answer Correct Answer: C) Xenon. 9. States of group 17 elements are ..... A) Fluorine-liquid, chlorine-gas, Bromine liquid, iodine solid. B) Fluorine-gas, chlorine-gas, Bromine liquid, iodine gas. C) Fluorine-gas, chlorine-gas, Bromine liquid, iodine solid. D) Fluorine-gas, chlorine-gas, Bromine gas, iodine solid. Show Answer Correct Answer: C) Fluorine-gas, chlorine-gas, Bromine liquid, iodine solid. 10. Which of the following is not hydrolysed? A) ASCl3. B) PF3. C) SbCl3. D) NF3. Show Answer Correct Answer: D) NF3. 11. Which of the following is isoelectronic pair? A) ICl$_{2}$, ClO$_{2}$. B) O$_{3}$, CN$^{-}$. C) BrO$_{2}$$^{-}$, BrF$_{2}$$^{+}$. D) ClO$_{2}$, BrF. Show Answer Correct Answer: C) BrO$_{2}$$^{-}$, BrF$_{2}$$^{+}$. 12. Hybridisation and shape of PCl$_{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. 13. 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$^{3}$. 14. 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. 15. Which element is essentially present in pseudo halogens? A) Oxygen. B) Halogen. C) Carbon. D) Nitrogen. Show Answer Correct Answer: D) Nitrogen. 16. 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. 17. 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. 18. What is the number of valence electrons in aluminum? A) 1 e-. B) 2e-. C) 3e-. D) 4e-. Show Answer Correct Answer: C) 3e-. 19. Lab method to prepare N2 A) Thermal decomposition of Sodium Azide. B) Thermal decomposition of Ammonium dichromate. C) Double displacement of aqueous solution of NH4Cl+NaNO2. D) Double displacement of NH4Cl+NaNO2. Show Answer Correct Answer: C) Double displacement of aqueous solution of NH4Cl+NaNO2. 20. 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. 21. What is the name of the following ion?N $^{3-}$ A) Nitrate ion. B) Nitride ion. C) Nitrite ion. D) Nitrogen(III) ion. Show Answer Correct Answer: B) Nitride ion. 22. What is the common oxidation state exhibited by Group 15 elements? A) -1. B) 0. C) +3. D) -3. Show Answer Correct Answer: D) -3. 23. 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) Sp3d2, octahedral. D) Dsp2, square planar. Show Answer Correct Answer: A) Sp3, tetrahedral. 24. The only one oxoacid of fluorine is A) HOF2. B) HOFO. C) HOF. D) HOF3. Show Answer Correct Answer: C) HOF. 25. Which of the following is dibasic acid? A) Hypophosphorus acid. B) Ortho Phosphorus acid. C) Pyrophosphoric acid. D) Orthophosphoric acid. Show Answer Correct Answer: B) Ortho Phosphorus acid. ← 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