Isomerism in Coordination Compounds
CHXII09:COORDINATION COMPOUNDS

321935 Assertion :
Geometrical isomerism is also called cis-trans isomerism.
Reason :
Tetrahedral complexes show geometrical isomerism.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
CHXII09:COORDINATION COMPOUNDS

321936 Which of the following complex has a possibility to exist as meridional isomer?

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

321937 The \(\mathrm{Cl}-\mathrm{Co}-\mathrm{Cl}\) bond angle values in a
fac- \(\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{3} \mathrm{Cl}_{3}\right]\) complex is/are

1 \(180^{\circ}\)
2 \(90^{\circ}\)
3 \(90^{\circ}\) and \(180^{\circ}\)
4 \(90^{\circ}\) and \(120^{\circ}\)
CHXII09:COORDINATION COMPOUNDS

321938 Read the Assertion and Reason carefully to mark the correct option out of the options given below.
Assertion :
The total number of geometrical isomers shown by \({\mathrm{\left[\mathrm{Co}(\mathrm{en})_{2} \mathrm{Cl}_{2}\right]^{+}}}\)complex ion is three.
Reason :
\({{\rm{[Co(en}}{{\rm{)}}_{\rm{2}}}{\rm{C}}{{\rm{l}}_{\rm{2}}}{\rm{]}}^{\rm{ + }}}\) complex ion has an octahedral geometry.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
CHXII09:COORDINATION COMPOUNDS

321939 On treatment of \(\left[\mathrm{Pt}\left(\mathrm{NH}_{3}\right)_{4}\right]^{2+}\) with concentrated \(\mathrm{HCl}\), two compounds (I) and (II) having the same formula, \(\left[\mathrm{Pt}\left(\mathrm{NH}_{3}\right)_{2} \mathrm{Cl}_{2}\right]\) are obtained, (I) can be converted into (II) by boiling with dilute \(\mathrm{HCl}\). A solution of (I) reacts with oxalic acid to form \(\left[\mathrm{Pt}\left(\mathrm{NH}_{3}\right)_{2}\left(\mathrm{C}_{2} \mathrm{O}_{4}\right)\right]\) whereas (II) does not react. Point out the correct statement of the following.

1 (I) cis, (II) trans; both tetrahedral
2 (I) cis, (II) trans; both square planar
3 (I) trans, (II) cis; both tetrahedral
4 (I) trans, (II) cis; both square planar
CHXII09:COORDINATION COMPOUNDS

321935 Assertion :
Geometrical isomerism is also called cis-trans isomerism.
Reason :
Tetrahedral complexes show geometrical isomerism.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
CHXII09:COORDINATION COMPOUNDS

321936 Which of the following complex has a possibility to exist as meridional isomer?

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

321937 The \(\mathrm{Cl}-\mathrm{Co}-\mathrm{Cl}\) bond angle values in a
fac- \(\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{3} \mathrm{Cl}_{3}\right]\) complex is/are

1 \(180^{\circ}\)
2 \(90^{\circ}\)
3 \(90^{\circ}\) and \(180^{\circ}\)
4 \(90^{\circ}\) and \(120^{\circ}\)
CHXII09:COORDINATION COMPOUNDS

321938 Read the Assertion and Reason carefully to mark the correct option out of the options given below.
Assertion :
The total number of geometrical isomers shown by \({\mathrm{\left[\mathrm{Co}(\mathrm{en})_{2} \mathrm{Cl}_{2}\right]^{+}}}\)complex ion is three.
Reason :
\({{\rm{[Co(en}}{{\rm{)}}_{\rm{2}}}{\rm{C}}{{\rm{l}}_{\rm{2}}}{\rm{]}}^{\rm{ + }}}\) complex ion has an octahedral geometry.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
CHXII09:COORDINATION COMPOUNDS

321939 On treatment of \(\left[\mathrm{Pt}\left(\mathrm{NH}_{3}\right)_{4}\right]^{2+}\) with concentrated \(\mathrm{HCl}\), two compounds (I) and (II) having the same formula, \(\left[\mathrm{Pt}\left(\mathrm{NH}_{3}\right)_{2} \mathrm{Cl}_{2}\right]\) are obtained, (I) can be converted into (II) by boiling with dilute \(\mathrm{HCl}\). A solution of (I) reacts with oxalic acid to form \(\left[\mathrm{Pt}\left(\mathrm{NH}_{3}\right)_{2}\left(\mathrm{C}_{2} \mathrm{O}_{4}\right)\right]\) whereas (II) does not react. Point out the correct statement of the following.

1 (I) cis, (II) trans; both tetrahedral
2 (I) cis, (II) trans; both square planar
3 (I) trans, (II) cis; both tetrahedral
4 (I) trans, (II) cis; both square planar
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CHXII09:COORDINATION COMPOUNDS

321935 Assertion :
Geometrical isomerism is also called cis-trans isomerism.
Reason :
Tetrahedral complexes show geometrical isomerism.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
CHXII09:COORDINATION COMPOUNDS

321936 Which of the following complex has a possibility to exist as meridional isomer?

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

321937 The \(\mathrm{Cl}-\mathrm{Co}-\mathrm{Cl}\) bond angle values in a
fac- \(\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{3} \mathrm{Cl}_{3}\right]\) complex is/are

1 \(180^{\circ}\)
2 \(90^{\circ}\)
3 \(90^{\circ}\) and \(180^{\circ}\)
4 \(90^{\circ}\) and \(120^{\circ}\)
CHXII09:COORDINATION COMPOUNDS

321938 Read the Assertion and Reason carefully to mark the correct option out of the options given below.
Assertion :
The total number of geometrical isomers shown by \({\mathrm{\left[\mathrm{Co}(\mathrm{en})_{2} \mathrm{Cl}_{2}\right]^{+}}}\)complex ion is three.
Reason :
\({{\rm{[Co(en}}{{\rm{)}}_{\rm{2}}}{\rm{C}}{{\rm{l}}_{\rm{2}}}{\rm{]}}^{\rm{ + }}}\) complex ion has an octahedral geometry.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
CHXII09:COORDINATION COMPOUNDS

321939 On treatment of \(\left[\mathrm{Pt}\left(\mathrm{NH}_{3}\right)_{4}\right]^{2+}\) with concentrated \(\mathrm{HCl}\), two compounds (I) and (II) having the same formula, \(\left[\mathrm{Pt}\left(\mathrm{NH}_{3}\right)_{2} \mathrm{Cl}_{2}\right]\) are obtained, (I) can be converted into (II) by boiling with dilute \(\mathrm{HCl}\). A solution of (I) reacts with oxalic acid to form \(\left[\mathrm{Pt}\left(\mathrm{NH}_{3}\right)_{2}\left(\mathrm{C}_{2} \mathrm{O}_{4}\right)\right]\) whereas (II) does not react. Point out the correct statement of the following.

1 (I) cis, (II) trans; both tetrahedral
2 (I) cis, (II) trans; both square planar
3 (I) trans, (II) cis; both tetrahedral
4 (I) trans, (II) cis; both square planar
CHXII09:COORDINATION COMPOUNDS

321935 Assertion :
Geometrical isomerism is also called cis-trans isomerism.
Reason :
Tetrahedral complexes show geometrical isomerism.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
CHXII09:COORDINATION COMPOUNDS

321936 Which of the following complex has a possibility to exist as meridional isomer?

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

321937 The \(\mathrm{Cl}-\mathrm{Co}-\mathrm{Cl}\) bond angle values in a
fac- \(\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{3} \mathrm{Cl}_{3}\right]\) complex is/are

1 \(180^{\circ}\)
2 \(90^{\circ}\)
3 \(90^{\circ}\) and \(180^{\circ}\)
4 \(90^{\circ}\) and \(120^{\circ}\)
CHXII09:COORDINATION COMPOUNDS

321938 Read the Assertion and Reason carefully to mark the correct option out of the options given below.
Assertion :
The total number of geometrical isomers shown by \({\mathrm{\left[\mathrm{Co}(\mathrm{en})_{2} \mathrm{Cl}_{2}\right]^{+}}}\)complex ion is three.
Reason :
\({{\rm{[Co(en}}{{\rm{)}}_{\rm{2}}}{\rm{C}}{{\rm{l}}_{\rm{2}}}{\rm{]}}^{\rm{ + }}}\) complex ion has an octahedral geometry.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
CHXII09:COORDINATION COMPOUNDS

321939 On treatment of \(\left[\mathrm{Pt}\left(\mathrm{NH}_{3}\right)_{4}\right]^{2+}\) with concentrated \(\mathrm{HCl}\), two compounds (I) and (II) having the same formula, \(\left[\mathrm{Pt}\left(\mathrm{NH}_{3}\right)_{2} \mathrm{Cl}_{2}\right]\) are obtained, (I) can be converted into (II) by boiling with dilute \(\mathrm{HCl}\). A solution of (I) reacts with oxalic acid to form \(\left[\mathrm{Pt}\left(\mathrm{NH}_{3}\right)_{2}\left(\mathrm{C}_{2} \mathrm{O}_{4}\right)\right]\) whereas (II) does not react. Point out the correct statement of the following.

1 (I) cis, (II) trans; both tetrahedral
2 (I) cis, (II) trans; both square planar
3 (I) trans, (II) cis; both tetrahedral
4 (I) trans, (II) cis; both square planar
CHXII09:COORDINATION COMPOUNDS

321935 Assertion :
Geometrical isomerism is also called cis-trans isomerism.
Reason :
Tetrahedral complexes show geometrical isomerism.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
CHXII09:COORDINATION COMPOUNDS

321936 Which of the following complex has a possibility to exist as meridional isomer?

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

321937 The \(\mathrm{Cl}-\mathrm{Co}-\mathrm{Cl}\) bond angle values in a
fac- \(\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{3} \mathrm{Cl}_{3}\right]\) complex is/are

1 \(180^{\circ}\)
2 \(90^{\circ}\)
3 \(90^{\circ}\) and \(180^{\circ}\)
4 \(90^{\circ}\) and \(120^{\circ}\)
CHXII09:COORDINATION COMPOUNDS

321938 Read the Assertion and Reason carefully to mark the correct option out of the options given below.
Assertion :
The total number of geometrical isomers shown by \({\mathrm{\left[\mathrm{Co}(\mathrm{en})_{2} \mathrm{Cl}_{2}\right]^{+}}}\)complex ion is three.
Reason :
\({{\rm{[Co(en}}{{\rm{)}}_{\rm{2}}}{\rm{C}}{{\rm{l}}_{\rm{2}}}{\rm{]}}^{\rm{ + }}}\) complex ion has an octahedral geometry.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
CHXII09:COORDINATION COMPOUNDS

321939 On treatment of \(\left[\mathrm{Pt}\left(\mathrm{NH}_{3}\right)_{4}\right]^{2+}\) with concentrated \(\mathrm{HCl}\), two compounds (I) and (II) having the same formula, \(\left[\mathrm{Pt}\left(\mathrm{NH}_{3}\right)_{2} \mathrm{Cl}_{2}\right]\) are obtained, (I) can be converted into (II) by boiling with dilute \(\mathrm{HCl}\). A solution of (I) reacts with oxalic acid to form \(\left[\mathrm{Pt}\left(\mathrm{NH}_{3}\right)_{2}\left(\mathrm{C}_{2} \mathrm{O}_{4}\right)\right]\) whereas (II) does not react. Point out the correct statement of the following.

1 (I) cis, (II) trans; both tetrahedral
2 (I) cis, (II) trans; both square planar
3 (I) trans, (II) cis; both tetrahedral
4 (I) trans, (II) cis; both square planar