Periodic Table · JEE Main previous year questions

2002 2 questions

1. Q2022002 · 27 Apr 2002 · Shift 1

   The correct order of ionic radius is

   1. A.$Ce>Sm>Tb>Lu$
   2. B.$Lu>Tb>Sm>Ce$
   3. C.$Tb>Lu>Sm>Ce$
   4. D.$Sm>Tb>Lu>Ce$
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   Answer: A

2. Q2032002 · 27 Apr 2002 · Shift 1

   $C{e}^{+3},L{a}^{+3},P{m}^{+3}$ and $Y{b}^{+3}$ have ionic radii in the increasing order as

   1. A.$L{a}^{+3}<C{e}^{+3}<P{m}^{+3}<Y{b}^{+3}$
   2. B.$Y{b}^{+3}<P{m}^{+3}<C{e}^{+3}<L{a}^{+3}$
   3. C.$L{a}^{+3}=C{e}^{+3}<P{m}^{+3}<Y{b}^{+3}$
   4. D.$Y{b}^{+3}<P{m}^{+3}<L{a}^{+3}<C{e}^{+3}$
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   Answer: B