PYQSidePowered byPrepblink ExamsMy practice

p-Block Elements (Group 13 & 14)

JEE Main 2024 (Online) 27th January Morning ShiftMCQEasy📈 Topic in 32% papers+4−1
Ques. 1JEE Main 2024, 27 January (Morning Shift)

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). In the light of the above statements, choose the most appropriate answer from the options given below :

  1. Both (A) and (R) are correct but (R) is not the correct explanation of (A)
  2. Both (A) and (R) are correct and (R) is the correct explanation of (A)
  3. (A) is true but (R) is false
  4. (A) is false but (R) is true

Answer

(2) Both (A) and (R) are correct and (R) is the correct explanation of (A)

Solution

Solid boron is a giant covalent network of B12 icosahedra ⇒ very strong crystalline lattice ⇒ R true

⇒ m.p. 2453 K, far above Al (933 K), Ga (303 K), In, Tl (metallic lattices) ⇒ A true

∵ the strong lattice is the reason for the high m.p. ⇒ R explains A

Answer: (2)

Keep practising — p-Block Elements (Group 13 & 14)

Ques. 2JEE Main 2026, 6 April (Morning Shift)

Given below are two statements : In the light of the above statements, choose the correct answer from the options given below :

  1. Both Statement I and Statement II are true
  2. Both Statement I and Statement II are false
  3. Statement I is true but Statement II is false
  4. Statement I is false but Statement II is true
Ques. 3JEE Main 2026, 5 April (Evening Shift)

Given below are two statements : In the light of the above statements, choose the correct answer from the options given below :

  1. Both Statement I and Statement II are true
  2. Both Statement I and Statement II are false
  3. Statement I is true but Statement II is false
  4. Statement I is false but Statement II is true
Ques. 4JEE Main 2026, 4 April (Evening Shift)

The electronegativity of a group 13 element 'E' is same as that of Ge (on Pauling scale and upto one decimal point). The CORRECT statements about E3+ are Choose the correct answer from the options given below :

  1. A and C Only
  2. B and C Only
  3. B and D Only
  4. A and D Only
Ques. 5JEE Main 2026, 28 January (Evening Shift)

Consider the following reactions Na2B4O7 2X + Y CuSO4 + Y Non-luminous flame Z + SO3 2Z + 2X + Carbon Luminous flame 2Q + Na2B4O7 + CO The oxidation states of Cu in Z and Q, respectively are :

  1. +2 and +1
  2. +1 and +1
  3. +1 and +2
  4. +2 and +2
Ques. 6JEE Main 2026, 24 January (Evening Shift)

Choose the INCORRECT statement

  1. Carbon exhibits negative oxidation states along with +4 and +2.
  2. Carbon cannot exceed its covalency more than four.
  3. Among the isotopes of carbon, 13C is a radioactive isotope.
  4. CO2 is the most acidic oxide among the dioxides of group 14 elements.
Ques. 7JEE Main 2026, 23 January (Morning Shift)

The correct statements from the following are : Choose the correct answer from the options given below :

  1. B and D Only
  2. C and D Only
  3. A and D Only
  4. A and C Only
Ques. 8JEE Main 2026, 23 January (Evening Shift)

It is noticed that Pb2+ is more stable than Pb4+ but Sn2+ is less stable than Sn4+. Observe the following reactions. PbO2 + Pb 2PbO; rG (1) SnO2 + Sn 2SnO; rG (2) Identify the correct set from the following

  1. rG (1) > 0; rG (2) < 0
  2. rG (1) < 0; rG (2) > 0
  3. rG (1) < 0; rG (2) < 0
  4. rG (1) > 0; rG (2) > 0
Ques. 9JEE Main 2026, 21 January (Morning Shift)

Given below are two statements : In the light of the above statements, choose the correct answer from the options given below :

  1. Both Statement I and Statement II are false
  2. Statement I is false but Statement II is true
  3. Both Statement I and Statement II are true
  4. Statement I is true but Statement II is false
Ques. 10JEE Main 2025, 7 April (Morning Shift)

The group 14 elements A and B have the first ionisation enthalpy values of 708 and 715 kJ mol-1 respectively. The above values are lowest among their group members. The nature of their ions A2+ and B4+ respectively is

  1. both reducing
  2. oxidising and reducing
  3. both oxidising
  4. reducing and oxidising
Ques. 11JEE Main 2025, 7 April (Evening Shift)

The correct statements from the following are : Choose the correct answer from the options given below :

  1. A, B, D and E only
  2. A, C and D only
  3. A, B, C and E
  4. B, D and E only

All p-Block Elements (Group 13 & 14) PYQs →

PDFDownload p-Block Elements (Group 13 & 14) PYQs as PDF Free, with answer key and a QR code to every solution — print it or study offline⬇
All JEE Main Chemistry chapters
Physical ChemistrySome Basic Concepts of ChemistryStructure of AtomStates of MatterThermodynamicsEquilibriumRedox ReactionsSolid StateSolutionsElectrochemistryChemical Kinetics
Inorganic ChemistryClassification of Elements and Periodicity in PropertiesChemical Bonding and Molecular Structures-Block Elementsp-Block Elements (Group 13 & 14)Environmental ChemistryGeneral Principles of Isolation of Elementsp-Block Elements (Group 15–18)d- and f-Block ElementsCoordination Compounds
Organic ChemistryOrganic Chemistry – Some Basic Principles and TechniquesIsomerismHydrocarbonsHaloalkanes and HaloarenesAlcohols, Phenols and EthersAldehydes, Ketones and Carboxylic AcidsAminesBiomoleculesPrinciples Related to Practical Chemistry