Atomos Test Generator Free PYQs ExamsMy practice Log in / Sign up free

p-Block Elements (Group 13 & 14)

JEE Main 2025 (Online) 29th January Morning ShiftMCQEasy📈 Topic in 21% papers+4−1
Ques. 1JEE Main 2025, 29 January (Morning Shift)

The standard reduction potential values of some of the p-block ions are given below. Predict the one with the strongest oxidising capacity.

  1. E Sn4+/Sn2+ = +0.15 V
  2. E Al3+/Al = -1.66 V
  3. E Pb4+/Pb2+ = +1.67 V
  4. E Tl3+/Tl = +1.26 V

Answer

(3) E Pb4+/Pb2+ = +1.67 V

Solution

Greater (more positive) the standard reduction potential, greater the tendency of the ion to gain electrons, i.e. stronger the oxidising agent.

+1.67 > +1.26 > +0.15 > -1.66

Pb4+ is the strongest oxidising agent. (As per NCERT, the +2 state of Pb is more stable than +4 due to the inert pair effect, so Pb4+ readily changes to Pb2+.)

Answer: (3)

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

Ques. 2JEE Main 2025, 28 January (Morning Shift)

Consider the following elements In, Tl, Al, Pb, Sn and Ge. The most stable oxidation states of elements with highest and lowest first ionisation enthalpies, respectively, are

  1. +4 and +1
  2. +4 and +3
  3. +1 and +4
  4. +2 and +3
Ques. 3JEE Main 2025, 24 January (Evening Shift)

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

  1. Statement I is false but Statement II is true
  2. Both Statement I and Statement II are false
  3. Both Statement I and Statement II are true
  4. Statement I is true but Statement II is false
Ques. 4JEE Main 2025, 23 January (Evening Shift)

Given below are the atomic numbers of some group 14 elements. The atomic number of the element with lowest melting point is :

  1. 14
  2. 50
  3. 6
  4. 82

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 ReactionsSolutionsElectrochemistryChemical Kinetics
Inorganic ChemistryClassification of Elements and Periodicity in PropertiesChemical Bonding and Molecular Structurep-Block Elements (Group 13 & 14)p-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