Multiple choice

Which of the following is a pair of ionisation iosmers?

  1. [Pd(NCS)2(PPh3)2] and [Pd(SCN)2(PPh3)2]

  2. [Cu(NH3)4][PtCl4] and [Pt(NH3)4][CuCl4]

  3. [Co(NH3)5Br]SO4 and [Co(NH3)5(SO4)]Br

  4. [Co(NH3)6][Cr(CN)6] and [Cr(NH3)6][Co(CN)6]

  5. [Co(NH3)5(NO2)]2+ and [Co(NH3)5(ONO)]2+
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

It is a pair of ionisation isomers.

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