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JEE Main 202528 JanuaryMorning Shift
Exam
JEE Main
Year
2025
Date
28 January
Shift
Morning Shift
Subject
Chemistry
Chapter
p Block Elements (Group 13 & 14)

JEE Main 2025 · 28 January · Morning Shift · Chemistry · p Block Elements (Group 13 & 14)

Consider the following elements In, Tl, Al, Pb, Sn and Ge . The...

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

Options

  1. A+4+4 and +1
  2. B+1 and +4
  3. C+4 and +3
  4. D+2 and +3

Correct answer

C. +4 and +3

Step-by-step solution

Among Al,In,Tl,Ge,Sn,Pb\mathrm{Al}, \mathrm{In}, \mathrm{Tl}, \mathrm{Ge}, \mathrm{Sn}, \mathrm{Pb}, the metal having highest IE1\mathrm{IE}_1 is Ge and lowest IE1\mathrm{IE}_1 is In . Most stable oxidation state of Ge is +4 and In is +3 .
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