Isomerism in Coordination Compounds
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CHXII09:COORDINATION COMPOUNDS

321965 Which one of the following has an optical isomer? (en = ethylenediamine)

1 \(\left[\mathrm{Zn}(\text { en })_{2}\right]^{2+}\)
2 \(\left[\mathrm{Co}\left(\mathrm{H}_{2} \mathrm{O}\right)_{4}(\text { en })\right]^{3+}\)
3 \(\left[\mathrm{Zn}(\text { en })\left(\mathrm{NH}_{3}\right)_{2}\right]^{2+}\)
4 \(\left[\mathrm{Co}(\text { en })_{3}\right]^{3+}\)
CHXII09:COORDINATION COMPOUNDS

321966 Which of the following will exhibit optical isomerism?

1 \(\left[\mathrm{Cr}(\mathrm{en})\left(\mathrm{H}_{2} \mathrm{O}\right)_{4}\right]^{3+}\)
2 \(\left[\mathrm{Cr}(\mathrm{en})_{3}\right]^{3+}\)
3 trans- \(\left[\mathrm{Cr}(\mathrm{en})\left(\mathrm{Cl}_{2}\right)\left(\mathrm{NH}_{3}\right)_{2}\right]^{+}\)
4 \(\left[\mathrm{Cr}\left(\mathrm{NH}_{3}\right)_{6}\right]^{3+}\)
CHXII09:COORDINATION COMPOUNDS

321967 Chiral complex from the following is
(Here, en \(=\) ethylene diamine)

1 cis - \(\left[\mathrm{PtCl}_{2}\left(\mathrm{NH}_{3}\right)_{2}\right]\)
2 trans \(-\left[\mathrm{PtCl}_{2}(\text { en })_{2}\right]^{2+}\)
3 trans - \(\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{4} \mathrm{Cl}_{2}\right]^{+}\)
4 cis \(-\left[\mathrm{PtCl}_{2}(\mathrm{en})_{2}\right]^{2+}\)
JEE - 2023
CHXII09:COORDINATION COMPOUNDS

321968 Which of the following complex species is not expected to exhibit optical isomerism?

1 \(\left[\mathrm{Co}(\mathrm{en})\left(\mathrm{NH}_{3}\right)_{2} \mathrm{Cl}_{2}\right]^{+}\)
2 \(\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{3} \mathrm{Cl}_{3}\right]\)
3 \(\left[\mathrm{Co}(\text { en })_{3} \mathrm{Cl}_{2}\right]^{+}\)
4 \(\left[\mathrm{Co}(\text { en })_{2} \mathrm{Cl}_{2}\right]^{+}\)
CHXII09:COORDINATION COMPOUNDS

321969 Which of the following will give a pair of enantiomers?

1 \(\left[\mathrm{Pt}\left(\mathrm{NH}_{3}\right)_{4} \mathrm{Cl}_{2}\right]\)
2 \(\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{4} \mathrm{Cl}_{2}\right] \mathrm{NO}_{2}\)
3 \(\left[\mathrm{Cr}\left(\mathrm{NH}_{3}\right)_{6}\right]\left[\mathrm{Co}(\mathrm{CN})_{6}\right]\)
4 \(\left[\mathrm{Co}(\mathrm{en})_{2} \mathrm{Cl}_{2}\right] \mathrm{Cl}\)
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CHXII09:COORDINATION COMPOUNDS

321965 Which one of the following has an optical isomer? (en = ethylenediamine)

1 \(\left[\mathrm{Zn}(\text { en })_{2}\right]^{2+}\)
2 \(\left[\mathrm{Co}\left(\mathrm{H}_{2} \mathrm{O}\right)_{4}(\text { en })\right]^{3+}\)
3 \(\left[\mathrm{Zn}(\text { en })\left(\mathrm{NH}_{3}\right)_{2}\right]^{2+}\)
4 \(\left[\mathrm{Co}(\text { en })_{3}\right]^{3+}\)
CHXII09:COORDINATION COMPOUNDS

321966 Which of the following will exhibit optical isomerism?

1 \(\left[\mathrm{Cr}(\mathrm{en})\left(\mathrm{H}_{2} \mathrm{O}\right)_{4}\right]^{3+}\)
2 \(\left[\mathrm{Cr}(\mathrm{en})_{3}\right]^{3+}\)
3 trans- \(\left[\mathrm{Cr}(\mathrm{en})\left(\mathrm{Cl}_{2}\right)\left(\mathrm{NH}_{3}\right)_{2}\right]^{+}\)
4 \(\left[\mathrm{Cr}\left(\mathrm{NH}_{3}\right)_{6}\right]^{3+}\)
CHXII09:COORDINATION COMPOUNDS

321967 Chiral complex from the following is
(Here, en \(=\) ethylene diamine)

1 cis - \(\left[\mathrm{PtCl}_{2}\left(\mathrm{NH}_{3}\right)_{2}\right]\)
2 trans \(-\left[\mathrm{PtCl}_{2}(\text { en })_{2}\right]^{2+}\)
3 trans - \(\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{4} \mathrm{Cl}_{2}\right]^{+}\)
4 cis \(-\left[\mathrm{PtCl}_{2}(\mathrm{en})_{2}\right]^{2+}\)
JEE - 2023
CHXII09:COORDINATION COMPOUNDS

321968 Which of the following complex species is not expected to exhibit optical isomerism?

1 \(\left[\mathrm{Co}(\mathrm{en})\left(\mathrm{NH}_{3}\right)_{2} \mathrm{Cl}_{2}\right]^{+}\)
2 \(\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{3} \mathrm{Cl}_{3}\right]\)
3 \(\left[\mathrm{Co}(\text { en })_{3} \mathrm{Cl}_{2}\right]^{+}\)
4 \(\left[\mathrm{Co}(\text { en })_{2} \mathrm{Cl}_{2}\right]^{+}\)
CHXII09:COORDINATION COMPOUNDS

321969 Which of the following will give a pair of enantiomers?

1 \(\left[\mathrm{Pt}\left(\mathrm{NH}_{3}\right)_{4} \mathrm{Cl}_{2}\right]\)
2 \(\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{4} \mathrm{Cl}_{2}\right] \mathrm{NO}_{2}\)
3 \(\left[\mathrm{Cr}\left(\mathrm{NH}_{3}\right)_{6}\right]\left[\mathrm{Co}(\mathrm{CN})_{6}\right]\)
4 \(\left[\mathrm{Co}(\mathrm{en})_{2} \mathrm{Cl}_{2}\right] \mathrm{Cl}\)
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CHXII09:COORDINATION COMPOUNDS

321965 Which one of the following has an optical isomer? (en = ethylenediamine)

1 \(\left[\mathrm{Zn}(\text { en })_{2}\right]^{2+}\)
2 \(\left[\mathrm{Co}\left(\mathrm{H}_{2} \mathrm{O}\right)_{4}(\text { en })\right]^{3+}\)
3 \(\left[\mathrm{Zn}(\text { en })\left(\mathrm{NH}_{3}\right)_{2}\right]^{2+}\)
4 \(\left[\mathrm{Co}(\text { en })_{3}\right]^{3+}\)
CHXII09:COORDINATION COMPOUNDS

321966 Which of the following will exhibit optical isomerism?

1 \(\left[\mathrm{Cr}(\mathrm{en})\left(\mathrm{H}_{2} \mathrm{O}\right)_{4}\right]^{3+}\)
2 \(\left[\mathrm{Cr}(\mathrm{en})_{3}\right]^{3+}\)
3 trans- \(\left[\mathrm{Cr}(\mathrm{en})\left(\mathrm{Cl}_{2}\right)\left(\mathrm{NH}_{3}\right)_{2}\right]^{+}\)
4 \(\left[\mathrm{Cr}\left(\mathrm{NH}_{3}\right)_{6}\right]^{3+}\)
CHXII09:COORDINATION COMPOUNDS

321967 Chiral complex from the following is
(Here, en \(=\) ethylene diamine)

1 cis - \(\left[\mathrm{PtCl}_{2}\left(\mathrm{NH}_{3}\right)_{2}\right]\)
2 trans \(-\left[\mathrm{PtCl}_{2}(\text { en })_{2}\right]^{2+}\)
3 trans - \(\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{4} \mathrm{Cl}_{2}\right]^{+}\)
4 cis \(-\left[\mathrm{PtCl}_{2}(\mathrm{en})_{2}\right]^{2+}\)
JEE - 2023
CHXII09:COORDINATION COMPOUNDS

321968 Which of the following complex species is not expected to exhibit optical isomerism?

1 \(\left[\mathrm{Co}(\mathrm{en})\left(\mathrm{NH}_{3}\right)_{2} \mathrm{Cl}_{2}\right]^{+}\)
2 \(\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{3} \mathrm{Cl}_{3}\right]\)
3 \(\left[\mathrm{Co}(\text { en })_{3} \mathrm{Cl}_{2}\right]^{+}\)
4 \(\left[\mathrm{Co}(\text { en })_{2} \mathrm{Cl}_{2}\right]^{+}\)
CHXII09:COORDINATION COMPOUNDS

321969 Which of the following will give a pair of enantiomers?

1 \(\left[\mathrm{Pt}\left(\mathrm{NH}_{3}\right)_{4} \mathrm{Cl}_{2}\right]\)
2 \(\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{4} \mathrm{Cl}_{2}\right] \mathrm{NO}_{2}\)
3 \(\left[\mathrm{Cr}\left(\mathrm{NH}_{3}\right)_{6}\right]\left[\mathrm{Co}(\mathrm{CN})_{6}\right]\)
4 \(\left[\mathrm{Co}(\mathrm{en})_{2} \mathrm{Cl}_{2}\right] \mathrm{Cl}\)
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CHXII09:COORDINATION COMPOUNDS

321965 Which one of the following has an optical isomer? (en = ethylenediamine)

1 \(\left[\mathrm{Zn}(\text { en })_{2}\right]^{2+}\)
2 \(\left[\mathrm{Co}\left(\mathrm{H}_{2} \mathrm{O}\right)_{4}(\text { en })\right]^{3+}\)
3 \(\left[\mathrm{Zn}(\text { en })\left(\mathrm{NH}_{3}\right)_{2}\right]^{2+}\)
4 \(\left[\mathrm{Co}(\text { en })_{3}\right]^{3+}\)
CHXII09:COORDINATION COMPOUNDS

321966 Which of the following will exhibit optical isomerism?

1 \(\left[\mathrm{Cr}(\mathrm{en})\left(\mathrm{H}_{2} \mathrm{O}\right)_{4}\right]^{3+}\)
2 \(\left[\mathrm{Cr}(\mathrm{en})_{3}\right]^{3+}\)
3 trans- \(\left[\mathrm{Cr}(\mathrm{en})\left(\mathrm{Cl}_{2}\right)\left(\mathrm{NH}_{3}\right)_{2}\right]^{+}\)
4 \(\left[\mathrm{Cr}\left(\mathrm{NH}_{3}\right)_{6}\right]^{3+}\)
CHXII09:COORDINATION COMPOUNDS

321967 Chiral complex from the following is
(Here, en \(=\) ethylene diamine)

1 cis - \(\left[\mathrm{PtCl}_{2}\left(\mathrm{NH}_{3}\right)_{2}\right]\)
2 trans \(-\left[\mathrm{PtCl}_{2}(\text { en })_{2}\right]^{2+}\)
3 trans - \(\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{4} \mathrm{Cl}_{2}\right]^{+}\)
4 cis \(-\left[\mathrm{PtCl}_{2}(\mathrm{en})_{2}\right]^{2+}\)
JEE - 2023
CHXII09:COORDINATION COMPOUNDS

321968 Which of the following complex species is not expected to exhibit optical isomerism?

1 \(\left[\mathrm{Co}(\mathrm{en})\left(\mathrm{NH}_{3}\right)_{2} \mathrm{Cl}_{2}\right]^{+}\)
2 \(\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{3} \mathrm{Cl}_{3}\right]\)
3 \(\left[\mathrm{Co}(\text { en })_{3} \mathrm{Cl}_{2}\right]^{+}\)
4 \(\left[\mathrm{Co}(\text { en })_{2} \mathrm{Cl}_{2}\right]^{+}\)
CHXII09:COORDINATION COMPOUNDS

321969 Which of the following will give a pair of enantiomers?

1 \(\left[\mathrm{Pt}\left(\mathrm{NH}_{3}\right)_{4} \mathrm{Cl}_{2}\right]\)
2 \(\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{4} \mathrm{Cl}_{2}\right] \mathrm{NO}_{2}\)
3 \(\left[\mathrm{Cr}\left(\mathrm{NH}_{3}\right)_{6}\right]\left[\mathrm{Co}(\mathrm{CN})_{6}\right]\)
4 \(\left[\mathrm{Co}(\mathrm{en})_{2} \mathrm{Cl}_{2}\right] \mathrm{Cl}\)
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CHXII09:COORDINATION COMPOUNDS

321965 Which one of the following has an optical isomer? (en = ethylenediamine)

1 \(\left[\mathrm{Zn}(\text { en })_{2}\right]^{2+}\)
2 \(\left[\mathrm{Co}\left(\mathrm{H}_{2} \mathrm{O}\right)_{4}(\text { en })\right]^{3+}\)
3 \(\left[\mathrm{Zn}(\text { en })\left(\mathrm{NH}_{3}\right)_{2}\right]^{2+}\)
4 \(\left[\mathrm{Co}(\text { en })_{3}\right]^{3+}\)
CHXII09:COORDINATION COMPOUNDS

321966 Which of the following will exhibit optical isomerism?

1 \(\left[\mathrm{Cr}(\mathrm{en})\left(\mathrm{H}_{2} \mathrm{O}\right)_{4}\right]^{3+}\)
2 \(\left[\mathrm{Cr}(\mathrm{en})_{3}\right]^{3+}\)
3 trans- \(\left[\mathrm{Cr}(\mathrm{en})\left(\mathrm{Cl}_{2}\right)\left(\mathrm{NH}_{3}\right)_{2}\right]^{+}\)
4 \(\left[\mathrm{Cr}\left(\mathrm{NH}_{3}\right)_{6}\right]^{3+}\)
CHXII09:COORDINATION COMPOUNDS

321967 Chiral complex from the following is
(Here, en \(=\) ethylene diamine)

1 cis - \(\left[\mathrm{PtCl}_{2}\left(\mathrm{NH}_{3}\right)_{2}\right]\)
2 trans \(-\left[\mathrm{PtCl}_{2}(\text { en })_{2}\right]^{2+}\)
3 trans - \(\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{4} \mathrm{Cl}_{2}\right]^{+}\)
4 cis \(-\left[\mathrm{PtCl}_{2}(\mathrm{en})_{2}\right]^{2+}\)
JEE - 2023
CHXII09:COORDINATION COMPOUNDS

321968 Which of the following complex species is not expected to exhibit optical isomerism?

1 \(\left[\mathrm{Co}(\mathrm{en})\left(\mathrm{NH}_{3}\right)_{2} \mathrm{Cl}_{2}\right]^{+}\)
2 \(\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{3} \mathrm{Cl}_{3}\right]\)
3 \(\left[\mathrm{Co}(\text { en })_{3} \mathrm{Cl}_{2}\right]^{+}\)
4 \(\left[\mathrm{Co}(\text { en })_{2} \mathrm{Cl}_{2}\right]^{+}\)
CHXII09:COORDINATION COMPOUNDS

321969 Which of the following will give a pair of enantiomers?

1 \(\left[\mathrm{Pt}\left(\mathrm{NH}_{3}\right)_{4} \mathrm{Cl}_{2}\right]\)
2 \(\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{4} \mathrm{Cl}_{2}\right] \mathrm{NO}_{2}\)
3 \(\left[\mathrm{Cr}\left(\mathrm{NH}_{3}\right)_{6}\right]\left[\mathrm{Co}(\mathrm{CN})_{6}\right]\)
4 \(\left[\mathrm{Co}(\mathrm{en})_{2} \mathrm{Cl}_{2}\right] \mathrm{Cl}\)