Sign in
12thPass logo
New chatPYQ LibraryDoubtsRank report
Sign in to see Recents

Your guest activity stays on this device

Sign in to save progress →
Sign in

P Block Elements

117 questions · Chemistry · JEE Main
Guest · filters and generic practice availableBrowsing as a guest · PYQ filters and generic practice are available. Sign in only for personalised features and saved progress.
  1. PYQ Library
  2. /JEE Main
  3. /Chemistry
  4. /P Block Elements

P Block Elements

117 questions · Chemistry · JEE Main

  1. The nature of oxide (TeO2​) and hydride (TeH2​) formed by Te , respectively are :2025 · 2 Apr · Shift 2 · Q15 · MCQ
  2. Given below are two statements : Statement I : The N - N single bond is weaker and longer than that of P - P single bond. Statement II : Compounds of group 15 elements in +3 oxidation states readily undergo disproportionation reactions. In…2025 · 3 Apr · Shift 1 · Q8 · MCQ
  3. Given below are two statements: Statement I: Nitrogen forms oxides with +1 to +5 oxidation states due to the formation of pπ−pπ bond with oxygen. Statement II: Nitrogen does not form halides with +5 oxidation…2025 · 4 Apr · Shift 1 · Q13 · MCQ
  4. Given below are the pairs of group 13 elements showing their relation in terms of atomic radius. (B<Al),(Al<Ga),(Ga<In) and (In<Tl) Identify the…2025 · 4 Apr · Shift 1 · Q19 · MCQ
  5. Given below are two statements : Statement (I) : The first ionisation enthalpy of group 14 elements is higher than the corresponding elements of group 13. Statement (II) : Melting points and boiling points of group 13 elements are in…2025 · 4 Apr · Shift 2 · Q4 · MCQ
  6. The correct statements from the following are : (A) Tl3+ is a powerful oxidising agent (B) Al3+ does not get reduced easily (C) Both Al3+ and Tl3+ are very stable in solution (D) Tl1+ is more stable than Tl3+…2025 · 7 Apr · Shift 2 · Q2 · MCQ
  7. The maximum covalency of a non-metallic group 15 element ' E ' with weakest E−E bond is :2025 · 22 Jan · Shift 2 · Q5 · MCQ
  8. The incorrect statement among the following is2025 · 23 Jan · Shift 1 · Q9 · MCQ
  9. The large difference between the melting and boiling points of oxygen and sulphur may be explained on the basis of2025 · 24 Jan · Shift 1 · Q2 · MCQ
  10. A group 15 element forms dπ−dπ bond with transition metals. It also forms hydride, which is a strongest base among the hydrides of other group members that form dπ−dπ bond. The atomic number of the element…2025 · 28 Jan · Shift 2 · Q25 · Numerical
  11. The number of white coloured salts, among the following is (a) SrSO4​(b) Mg(NH4​)PO4​(c) BaCrO4​(d) Mn(OH)2​(e) PbSO4​(f) PbCrO4​(g) AgBr…2024 · 1 Feb · Shift 1 · Q21 · Numerical
  12. Among the following oxides of p-block elements, number of oxides having amphoteric nature is ​. Cl2​O7​,CO,PbO2​, N2​O,NO,Al2​O3​,SiO2​, N2​O5​,SnO2​…2024 · 1 Feb · Shift 1 · Q24 · Numerical
  13. The strongest reducing agent among the following is :2024 · 1 Feb · Shift 2 · Q12 · MCQ
  14. Given below are two statements : Statement (I) : SiO2​ and GeO2​ are acidic while SnO and PbO are amphoteric in nature. Statement (II) : Allotropic forms of carbon are due to property of…2024 · 1 Feb · Shift 2 · Q3 · MCQ
  15. The number of neutrons present in the more abundant isotope of boron is 'x'. Amorphous boron upon heating with air forms a product, in which the oxidation state of boron is 'y'. The value of x+y is ​ .2024 · 5 Apr · Shift 1 · Q13 · MCQ
  16. The correct statements from the following are : (A) The decreasing order of atomic radii of group 13 elements is Tl>In>Ga>Al>B. (B) Down the group 13 electronegativity decreases…2024 · 5 Apr · Shift 2 · Q11 · MCQ
  17. Which of the following material is not a semiconductor.2024 · 6 Apr · Shift 1 · Q14 · MCQ
  18. Given below are two statements : Statement I : Gallium is used in the manufacturing of thermometers. Statement II : A thermometer containing gallium is useful for measuring the freezing point (256 K) of brine solution. In the…2024 · 6 Apr · Shift 1 · Q9 · MCQ
  19. Evaluate the following statements related to group 14 elements for their correctness. (A) Covalent radius decreases down the group from C to Pb in a regular manner. (B) Electronegativity decreases from C to…2024 · 6 Apr · Shift 2 · Q13 · MCQ
  20. Give below are two statements: One is labelled as Assertion A and the other is labelled as Reason R: Assertion A: The stability order of +1 oxidation state of Ga, In and Tl is Ga Reason R: The inert pair effect…2024 · 8 Apr · Shift 1 · Q3 · MCQ
  21. Among the following halogens F2​,Cl2​,Br2​ and I2​ Which can undergo disproportionation reactions?2024 · 8 Apr · Shift 1 · Q6 · MCQ
  22. Identify the correct statements about p-block elements and their compounds. (A) Non metals have higher electronegativity than metals. (B) Non metals have lower ionisation enthalpy than metals. (C) Compounds formed between highly reactive…2024 · 8 Apr · Shift 2 · Q13 · MCQ
  23. Identify the incorrect statements about group 15 elements : (A) Dinitrogen is a diatomic gas which acts like an inert gas at room temperature. (B) The common oxidation states of these elements are −3,+3 and +5. (C) Nitrogen has unique…2024 · 8 Apr · Shift 2 · Q19 · MCQ
  24. In qualitative test for identification of presence of phosphorous, the compound is heated with an oxidising agent. Which is further treated with nitric acid and ammonium molybdate respectively. The yellow coloured precipitate obtained is :2024 · 8 Apr · Shift 2 · Q20 · MCQ
  25. Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : Both rhombic and monoclinic sulphur exist as S8​ while oxygen exists as O2​. Reason (R) :…2024 · 9 Apr · Shift 1 · Q14 · MCQ
  26. On reaction of Lead Sulphide with dilute nitric acid which of the following is not formed?2024 · 9 Apr · Shift 1 · Q19 · MCQ
  27. Number of oxygen atoms present in chemical formula of fuming sulphuric acid is ​.2024 · 9 Apr · Shift 2 · Q29 · Numerical
  28. Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : Melting point of Boron (2453 K) is unusually high in group 13 elements. Reason (R) : Solid Boron has very strong…2024 · 27 Jan · Shift 1 · Q13 · MCQ
  29. Element not showing variable oxidation state is :2024 · 27 Jan · Shift 1 · Q3 · MCQ
  30. From the given list, the number of compounds with +4 oxidation state of Sulphur ​. SO3​,H2​SO3​,SOCl2​,SF4​,BaSO4​,H2​S2​O7​…2024 · 27 Jan · Shift 1 · Q30 · Numerical
  31. 1 mole of PbS is oxidised by "X" moles of O3​ to get "Y" moles of O2​. X+Y=​.2024 · 27 Jan · Shift 2 · Q21 · Numerical
  32. Given below are two statements : Statement (I) : Oxygen being the first member of group 16 exhibits only -2 oxidation state. Statement (II) : Down the group 16 stability of +4 oxidation state decreases and +6 oxidation state increases. In…2024 · 27 Jan · Shift 2 · Q4 · MCQ
  33. Identify the incorrect pair from the following :2024 · 29 Jan · Shift 1 · Q1 · MCQ
  34. On passing a gas, 'X', through Nessler's regent, a brown precipitate is obtained. The gas 'X' is2024 · 29 Jan · Shift 2 · Q1 · MCQ
  35. The Lassiagne's extract is boiled with dil HNO3​ before testing for halogens because,2024 · 30 Jan · Shift 1 · Q11 · MCQ
  36. Given below are two statements : Statement (I) : The gas liberated on warming a salt with dil H2​SO4​, turns a piece of paper dipped in lead acetate into black, it is a confirmatory test for sulphide ion. Statement…2024 · 30 Jan · Shift 1 · Q3 · MCQ
  37. Choose the correct statements about the hydrides of group 15 elements. A. The stability of the hydrides decreases in the order NH3​>PH3​>AsH3​>SbH3​>BiH3​. B. The reducing…2024 · 30 Jan · Shift 2 · Q11 · MCQ
  38. A and B formed in the following reactions are: ​CrO2​Cl2​+4NaOH→A+2NaCl+2H2​O,A+2HCl+2H2​O2​→B+3H2​O​…2024 · 30 Jan · Shift 2 · Q7 · MCQ
  39. Consider the oxides of group 14 elements SiO2​,GeO2​,SnO2​,PbO2​,CO and GeO. The amphoteric oxides are2024 · 31 Jan · Shift 1 · Q2 · MCQ
  40. The compound that is white in color is2024 · 31 Jan · Shift 1 · Q3 · MCQ
  41. Give below are two statements: Statement - I: Noble gases have very high boiling points. Statement - II: Noble gases are monoatomic gases. They are held together by strong dispersion forces. Because of this they are liquefied at very low…2024 · 31 Jan · Shift 1 · Q4 · MCQ
  42. Given below are two statements: Statement I : Group 13 trivalent halides get easily hydrolyzed by water due to their covalent nature. Statement II : AlCl3​ upon hydrolysis in acidified aqueous solution forms octahedral [Al(H2​O)6​]3+…2024 · 31 Jan · Shift 2 · Q4 · MCQ
  43. Given below are two statements: Statement I : S8​ solid undergoes disproportionation reaction under alkaline conditions to form S2− and S2​O3​2−. Statement II : ClO4−​ can…2024 · 31 Jan · Shift 2 · Q6 · MCQ
  44. Choose the correct statements from the following A. All group 16 elements form oxides of general formula EO2​ and EO3​, where E=S,Se,Te and Po. Both the types of…2024 · 31 Jan · Shift 2 · Q8 · MCQ
  45. For electron gain enthalpies of the elements denoted as Δeg​H, the incorrect option is :2023 · 1 Feb · Shift 2 · Q11 · MCQ
  46. In the following reactions, the total number of oxygen atoms in X and Y is ​. Na 2​ O + H 2​ O → 2X Cl 2​ O 7​ + H 2​ O → 2Y2023 · 10 Apr · Shift 1 · Q21 · Numerical
  47. For compound having the formula GaAlCl4​, the correct option from the following is :2023 · 11 Apr · Shift 1 · Q11 · MCQ
  48. Which one of the following pairs is an example of polar molecular solids?2023 · 11 Apr · Shift 2 · Q1 · MCQ
  49. Given below are two statements : Statement I : Boron is extremely hard indicating its high lattice energy. Statement II : Boron has highest melting and boiling point compared to its other group members. In the light of the above…2023 · 12 Apr · Shift 1 · Q1 · MCQ
  50. Given below are two statements : Statement I : SbCl5​ is more covalent than SbCl3​ Statement II: The higher oxides of halogens also tend to be more stable than the lower ones. In the light of the above statements,…2023 · 12 Apr · Shift 1 · Q11 · MCQ
  51. The covalency and oxidation state respectively of boron in [BF4​]−, are :2023 · 13 Apr · Shift 2 · Q9 · MCQ
  52. During water-gas shift reaction2023 · 15 Apr · Shift 1 · Q1 · MCQ
  53. K2​Cr2​O7​ paper acidified with dilute H2​SO4​ turns green when exposed to :2023 · 24 Jan · Shift 2 · Q11 · MCQ
  54. Sum of π-bonds present in peroxodisulphuric acid and pyrosulphuric acid is ​2023 · 24 Jan · Shift 2 · Q19 · Numerical
  55. Potassium dichromate acts as a strong oxidizing agent in acidic solution. During this process, the oxidation state changes from :2023 · 25 Jan · Shift 2 · Q13 · MCQ
  56. A. Ammonium salts produce haze in atmosphere. B. Ozone gets produced when atmospheric oxygen reacts with chlorine radicals. C. Polychlorinated biphenyls act as cleansing solvents. D. 'Blue baby' syndrome occurs due to the presence of…2023 · 25 Jan · Shift 2 · Q8 · MCQ
  57. Given below are two statements : Statement I: Upon heating a borax bead dipped in cupric sulphate in a luminous flame, the colour of the bead becomes green Statement II: The green colour observed is due to the formation of copper(I)…2023 · 31 Jan · Shift 2 · Q11 · MCQ
  58. The most stable trihalide of nitrogen is :2022 · 24 Jun · Shift 1 · Q6 · MCQ
  59. PCl5​ is well known, but NCl5​ is not. because,2022 · 24 Jun · Shift 2 · Q7 · MCQ
  60. Match List I with List II: Choose the correct answer from the options given below : Includes table2022 · 25 Jul · Shift 2 · Q7 · MCQ
  61. White precipitate of AgCl dissolves in aqueous ammonia solution due to formation of :2022 · 25 Jun · Shift 1 · Q4 · MCQ
  62. Match List - I with List - II. Choose the correct answer from the options given below : Includes table2022 · 26 Jul · Shift 1 · Q2 · MCQ
  63. Choose the correct stability order of group 13 elements in their + 1 oxidation state :2022 · 26 Jun · Shift 1 · Q5 · MCQ
  64. Which of the following elements is considered as a metalloid?2022 · 26 Jun · Shift 2 · Q3 · MCQ
  65. The oxide which contains an odd electron at the nitrogen atom is :2022 · 26 Jun · Shift 2 · Q4 · MCQ
  66. Given below are two statements. One is labelled as Assertion A and the other is labelled as Reason R. Assertion A : Activated charcoal adsorbs SO2​ more efficiently than CH4​. Reason R : Gases with lower critical temperatures are…2022 · 27 Jul · Shift 1 · Q4 · MCQ
  67. Match List I with List II. Choose the correct answer from the options given below : Includes table2022 · 27 Jun · Shift 2 · Q14 · MCQ
  68. Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R. Assertion A : Fluorine forms one oxoacid. Reason R : Fluorine has smallest size amongst all halogens and is highly electronegative. In…2022 · 27 Jun · Shift 2 · Q4 · MCQ
  69. Dinitrogen and dioxygen, the main constituents of air do not react with each other in atmosphere to form oxides of nitrogen because :2022 · 28 Jul · Shift 2 · Q6 · MCQ
  70. Nitrogen gas is obtained by thermal decomposition of :2022 · 28 Jun · Shift 1 · Q2 · MCQ
  71. In liquation process used for tin (Sn), the metal :2022 · 29 Jul · Shift 2 · Q5 · MCQ
  72. Given below are two statements. Statement I : Stannane is an example of a molecular hydride. Statement II : Stannane is a planar molecule. In the light of the above statement, choose the most appropriate answer from the options given below.2022 · 29 Jul · Shift 2 · Q6 · MCQ
  73. Sulphur dioxide is one of the components of polluted air. SO2​ is also a major contributor to acid rain. The correct and complete reaction to represent acid rain caused by SO2​ is :2022 · 29 Jun · Shift 2 · Q7 · MCQ
  74. A ⟶573K​ Red phosphorus underpressure⟶heat;803K​ B Red phosphorus is obtained by heating "A" at 573 K, and can be…2022 · 30 Jun · Shift 1 · Q7 · MCQ
  75. A group of 15 element, which is a metal and forms a hydride with strongest reducing power among group 15 hydrides. The element is :2021 · 16 Mar · Shift 1 · Q7 · MCQ
  76. Match List - I with List - II Choose the most appropriate answer from the options given below : Includes table2021 · 18 Mar · Shift 1 · Q13 · MCQ
  77. The species given below that does NOT show disproportionation reaction is :2021 · 20 Jul · Shift 1 · Q4 · MCQ
  78. Which one of the following group-15 hydride is the strongest reducing agent?2021 · 22 Jul · Shift 2 · Q9 · MCQ
  79. The reaction of sulphur in alkaline medium is given below: The values of 'a' is ​. (Integer answer) Includes diagram2021 · 24 Feb · Shift 1 · Q20 · Numerical
  80. Which one of the following compounds of Group-14 elements is not known?2021 · 25 Jul · Shift 1 · Q10 · MCQ
  81. Find A, B and C in the following reactions : NH3​+A+CO2​→(NH4​)2​CO3​(NH4​)2​CO3​+H2​O+B→NH4​HCO3​NH4​HCO3​+NaCl→NH4​Cl+C2021 · 26 Feb · Shift 1 · Q3 · MCQ
  82. Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R. Assertion A : In TlI3​, isomorphous to CsI3​, the metal is present in +1 oxidation state. Reason R : Tl metal has fourteen f…2021 · 26 Feb · Shift 2 · Q5 · MCQ
  83. In polythionic acid, H2​Sx​O6​ (x = 3 to 5) the oxidation state(s) of sulphur is/are :2021 · 27 Aug · Shift 1 · Q12 · MCQ
  84. Match List - I with List - II : Choose the correct answer from the options given below : Includes table2021 · 27 Jul · Shift 2 · Q10 · MCQ
  85. Given below are two statement : one is labelled as Assertion A and the other is labelled as Reason R. Assertion A : SO2​(g) is absorbed to a large extent than H2​(g) on activated charcoal. Reason R : SO2​(g) has a higher critical…2021 · 27 Jul · Shift 2 · Q2 · MCQ
  86. Boron and silicon of very high purity can be obtained through :2020 · 5 Sep · Shift 2 · Q17 · MCQ
  87. The correct statement with respect to dinitrogen is :2020 · 6 Sep · Shift 1 · Q9 · MCQ
  88. A metal (A) on heating in nitrogen gas gives compound B. B on treatment with H2​O gives a colourless gas which when passed through CuSO4​ solution gives a dark blue-violet coloured solution. A and B respectively, are :2020 · 8 Jan · Shift 2 · Q19 · MCQ
  89. The reaction of H3​N3​B3​Cl3​ (A) with LiBH4​ in tetrahydrofuran gives inorganic benzene (B). Further, the reaction of (A) with (C) leads to H3​N3​B3​(Me)3​. Compounds (B) and (C) respectively, are :2020 · 9 Jan · Shift 2 · Q13 · MCQ
  90. The correct statements among I to III regarding group 13 element oxides are, (I) Boron trioxide is acidic. (II) Oxides of aluminium and gallium are amphoteric. (III) Oxides of indium and thalliumare basic.2019 · 9 Apr · Shift 2 · Q12 · MCQ
  91. The one that is extensively used as a piezoelectric material is :2019 · 9 Jan · Shift 1 · Q10 · MCQ
  92. The noble gas that does not occur in the atmosphere is :2019 · 10 Apr · Shift 2 · Q20 · MCQ
  93. The element that does NOT show catenation is :2019 · 12 Jan · Shift 2 · Q17 · MCQ
  94. The element that shows greater ability to form p π-p π multiple bonds, is :2019 · 12 Jan · Shift 2 · Q7 · MCQ
  95. In graphite and diamond, the percentage of p-characters of the hybrid orbitals in hybridisation are respectively :2018 · 15 Apr · Shift 1 · Q16 · MCQ
  96. In KO2​, the nature of oxygen species and the oxydation state of oxygen atom are, respectively :2018 · 15 Apr · Shift 2 · Q17 · MCQ
  97. The compound that does not produce nitrogen gas by the thermal decomposition is :2018 · Shift 0 · Q11 · MCQ
  98. A metal ‘M’ reacts with nitrogen gas to afford ‘M3​N’. ‘M3​N’ on heating at high temperature gives back ‘M’ and on reaction with water produces a gas ‘B’. Gas ‘B’ reacts with aqueous solution of CuSO4​ to form a deep blue compound.…2017 · 8 Apr · Shift 1 · Q13 · MCQ
  99. The non-metal that does not exhibit positive oxidation state is :2016 · 9 Apr · Shift 1 · Q14 · MCQ
  100. Which intermolecular force is most responsible in allowing xenon gas to liquefy?2016 · 9 Apr · Shift 1 · Q20 · MCQ
  101. Aqueous solution of which salt will not contain ions with the electronic configuration 1s22s22p63s23p6 ?2016 · 10 Apr · Shift 1 · Q19 · MCQ
  102. Assertion : Nitrogen and Oxygen are the main components in the atmosphere but these do not react to form oxides of nitrogen. Reason : The reaction between nitrogen and oxygen requires high temperature.2015 · Shift 0 · Q18 · MCQ
  103. Which one has the highest boiling point?2015 · Shift 0 · Q19 · MCQ
  104. The correct statement for the molecule, CsI3​ is :2014 · Shift 0 · Q20 · MCQ
  105. Which one of the following properties is not shown by NO?2014 · Shift 0 · Q21 · MCQ
  106. The molecule having smallest bond angle is :2012 · Shift 0 · Q17 · MCQ
  107. Which of the following statement is wrong?2011 · Shift 0 · Q20 · MCQ
  108. Which of the following statements regarding sulphur is incorrect?2011 · Shift 0 · Q21 · MCQ
  109. Which one of the following is the correct statement?2008 · Shift 0 · Q21 · MCQ
  110. The stability of dihalides of Si,Ge,Sn and Pb increases steadily in the sequence :2007 · Shift 0 · Q11 · MCQ
  111. Regular use of which of the following fertilizer increases the acidity of soil?2007 · Shift 0 · Q22 · MCQ
  112. Which of the following statements is true?2006 · Shift 0 · Q38 · MCQ
  113. Beryllium and aluminium exhibit many properties which are similar. But the two elements differ in :2004 · Shift 0 · Q44 · MCQ
  114. Which one the following statement regarding helium is incorrect?2004 · Shift 0 · Q45 · MCQ
  115. Which one of the following substances has the highest proton affinity?2003 · Shift 0 · Q29 · MCQ
  116. Glass is a :2003 · Shift 0 · Q44 · MCQ
  117. Oxidation number of Cl in CaOCl2​ (bleaching powder) is :2002 · Shift 0 · Q44 · MCQ