Periodic Table · JEE Main previous year questions

2012 1 question

1. Q632012 · 26 May 2012 · Shift 1

   Which of the following presents the correct order of second ionization enthalpies of C, N, O and F ?

   1. A.$\mathrm{F}>\mathrm{O}>\mathrm{N}>\mathrm{C}$
   2. B.$\mathrm{O}>\mathrm{N}>\mathrm{F}>\mathrm{C}$
   3. C.$\mathrm{C}>\mathrm{N}>\mathrm{O}>\mathrm{F}$
   4. D.$\mathrm{O}>\mathrm{F}>\mathrm{N}>\mathrm{C}$
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   Answer: D