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Periodic Table and Periodicity question

2025 · 4 Apr · Shift 2 · Q20
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  5. /2025 · 4 Apr · Shift 2 · Q20

Periodic Table and Periodicity question

2025 · 4 Apr · Shift 2 · Q20

JEE MainChemistryPeriodic Table and PeriodicityMCQ+4 / −1
The elements of Group 13 with highest and lowest first ionisation enthalpies are respectively :
  1. A
    B & Tl\mathrm{B} ~\&~ \mathrm{Tl}B & Tl
  2. B
    Tl &  B\mathrm{Tl} ~\& ~\mathrm{~B}Tl &  B
  3. C
    B & In⁡B ~\& ~\operatorname{In}B & In
  4. D
    B & GaB ~\& ~G aB & Ga
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