Stability of Coordination Compounds
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CHXII09:COORDINATION COMPOUNDS

322086 Statement A :
Statement \(\mathrm{A}\) The stability of \(\left[\mathrm{Ni}(\mathrm{en})_{3}\right] \mathrm{Cl}_{2}\) is lower than that of \(\left[\mathrm{Ni}\left(\mathrm{NH}_{3}\right)_{6}\right] \mathrm{Cl}_{2}\).
Statement B :
The geometry of \(\mathrm{Ni}\) is trigonal bipyrimidal in \(\left[\mathrm{Ni}(\mathrm{en})_{3}\right] \mathrm{Cl}_{2}\).

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
CHXII09:COORDINATION COMPOUNDS

322087 Amongst the following, the most stable complex is

1 \(\left[\mathrm{Fe}\left(\mathrm{H}_{2} \mathrm{O}\right)_{6}\right]^{3+}\)
2 \(\left[\mathrm{Fe}\left(\mathrm{NH}_{3}\right)_{6}\right]^{3+}\)
3 \(\left[\mathrm{Fe}\left(\mathrm{C}_{2} \mathrm{O}_{4}\right)_{3}\right]^{3-}\)
4 \(\left[\mathrm{FeCl}_{6}\right]^{3-}\)
CHXII09:COORDINATION COMPOUNDS

322088 Assertion :
\({{\text{K}}_{\text{2}}}{\text{[Ni(EDTA)]}}\) is more stable than \({{\text{K}}_{\text{3}}}\left[ {{\text{Al}}{{\left( {{{\text{C}}_{\text{2}}}{{\text{O}}_{\text{4}}}} \right)}_{\text{3}}}} \right]\)
Reason :
Nickel (Ni) is a transition element while aluminium (Al) is non-transistion element.

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

322089 Which complex compound is most stable?

1 \(\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{3}\left(\mathrm{NO}_{3}\right)_{3}\right]\)
2 \(\left[\mathrm{CoCl}_{2}\left(\mathrm{en}_{2}\right)\right] \mathrm{NO}_{3}\)
3 \(\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{6}\right]_{2}\left(\mathrm{SO}_{4}\right)_{3}\)
4 \(\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{4}\left(\mathrm{H}_{2} \mathrm{O}\right) \mathrm{Br}\right]\left(\mathrm{NO}_{3}\right)_{2}\)
NEET - 2023
CHXII09:COORDINATION COMPOUNDS

322090 Assertion :
Toxic metal ions are removed by the chelating ligands.
Reason :
Chelate complexes tend to be more stable.

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 Both Assertion and reason is incorrect.
AIIMS - 2018
NEET DIGITAL LIBRARY
CHXII09:COORDINATION COMPOUNDS

322086 Statement A :
Statement \(\mathrm{A}\) The stability of \(\left[\mathrm{Ni}(\mathrm{en})_{3}\right] \mathrm{Cl}_{2}\) is lower than that of \(\left[\mathrm{Ni}\left(\mathrm{NH}_{3}\right)_{6}\right] \mathrm{Cl}_{2}\).
Statement B :
The geometry of \(\mathrm{Ni}\) is trigonal bipyrimidal in \(\left[\mathrm{Ni}(\mathrm{en})_{3}\right] \mathrm{Cl}_{2}\).

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
CHXII09:COORDINATION COMPOUNDS

322087 Amongst the following, the most stable complex is

1 \(\left[\mathrm{Fe}\left(\mathrm{H}_{2} \mathrm{O}\right)_{6}\right]^{3+}\)
2 \(\left[\mathrm{Fe}\left(\mathrm{NH}_{3}\right)_{6}\right]^{3+}\)
3 \(\left[\mathrm{Fe}\left(\mathrm{C}_{2} \mathrm{O}_{4}\right)_{3}\right]^{3-}\)
4 \(\left[\mathrm{FeCl}_{6}\right]^{3-}\)
CHXII09:COORDINATION COMPOUNDS

322088 Assertion :
\({{\text{K}}_{\text{2}}}{\text{[Ni(EDTA)]}}\) is more stable than \({{\text{K}}_{\text{3}}}\left[ {{\text{Al}}{{\left( {{{\text{C}}_{\text{2}}}{{\text{O}}_{\text{4}}}} \right)}_{\text{3}}}} \right]\)
Reason :
Nickel (Ni) is a transition element while aluminium (Al) is non-transistion element.

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

322089 Which complex compound is most stable?

1 \(\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{3}\left(\mathrm{NO}_{3}\right)_{3}\right]\)
2 \(\left[\mathrm{CoCl}_{2}\left(\mathrm{en}_{2}\right)\right] \mathrm{NO}_{3}\)
3 \(\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{6}\right]_{2}\left(\mathrm{SO}_{4}\right)_{3}\)
4 \(\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{4}\left(\mathrm{H}_{2} \mathrm{O}\right) \mathrm{Br}\right]\left(\mathrm{NO}_{3}\right)_{2}\)
NEET - 2023
CHXII09:COORDINATION COMPOUNDS

322090 Assertion :
Toxic metal ions are removed by the chelating ligands.
Reason :
Chelate complexes tend to be more stable.

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 Both Assertion and reason is incorrect.
AIIMS - 2018
Join With Us for More Updates
CHXII09:COORDINATION COMPOUNDS

322086 Statement A :
Statement \(\mathrm{A}\) The stability of \(\left[\mathrm{Ni}(\mathrm{en})_{3}\right] \mathrm{Cl}_{2}\) is lower than that of \(\left[\mathrm{Ni}\left(\mathrm{NH}_{3}\right)_{6}\right] \mathrm{Cl}_{2}\).
Statement B :
The geometry of \(\mathrm{Ni}\) is trigonal bipyrimidal in \(\left[\mathrm{Ni}(\mathrm{en})_{3}\right] \mathrm{Cl}_{2}\).

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
CHXII09:COORDINATION COMPOUNDS

322087 Amongst the following, the most stable complex is

1 \(\left[\mathrm{Fe}\left(\mathrm{H}_{2} \mathrm{O}\right)_{6}\right]^{3+}\)
2 \(\left[\mathrm{Fe}\left(\mathrm{NH}_{3}\right)_{6}\right]^{3+}\)
3 \(\left[\mathrm{Fe}\left(\mathrm{C}_{2} \mathrm{O}_{4}\right)_{3}\right]^{3-}\)
4 \(\left[\mathrm{FeCl}_{6}\right]^{3-}\)
CHXII09:COORDINATION COMPOUNDS

322088 Assertion :
\({{\text{K}}_{\text{2}}}{\text{[Ni(EDTA)]}}\) is more stable than \({{\text{K}}_{\text{3}}}\left[ {{\text{Al}}{{\left( {{{\text{C}}_{\text{2}}}{{\text{O}}_{\text{4}}}} \right)}_{\text{3}}}} \right]\)
Reason :
Nickel (Ni) is a transition element while aluminium (Al) is non-transistion element.

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

322089 Which complex compound is most stable?

1 \(\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{3}\left(\mathrm{NO}_{3}\right)_{3}\right]\)
2 \(\left[\mathrm{CoCl}_{2}\left(\mathrm{en}_{2}\right)\right] \mathrm{NO}_{3}\)
3 \(\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{6}\right]_{2}\left(\mathrm{SO}_{4}\right)_{3}\)
4 \(\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{4}\left(\mathrm{H}_{2} \mathrm{O}\right) \mathrm{Br}\right]\left(\mathrm{NO}_{3}\right)_{2}\)
NEET - 2023
CHXII09:COORDINATION COMPOUNDS

322090 Assertion :
Toxic metal ions are removed by the chelating ligands.
Reason :
Chelate complexes tend to be more stable.

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 Both Assertion and reason is incorrect.
AIIMS - 2018
For More Updates join with Us
CHXII09:COORDINATION COMPOUNDS

322086 Statement A :
Statement \(\mathrm{A}\) The stability of \(\left[\mathrm{Ni}(\mathrm{en})_{3}\right] \mathrm{Cl}_{2}\) is lower than that of \(\left[\mathrm{Ni}\left(\mathrm{NH}_{3}\right)_{6}\right] \mathrm{Cl}_{2}\).
Statement B :
The geometry of \(\mathrm{Ni}\) is trigonal bipyrimidal in \(\left[\mathrm{Ni}(\mathrm{en})_{3}\right] \mathrm{Cl}_{2}\).

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
CHXII09:COORDINATION COMPOUNDS

322087 Amongst the following, the most stable complex is

1 \(\left[\mathrm{Fe}\left(\mathrm{H}_{2} \mathrm{O}\right)_{6}\right]^{3+}\)
2 \(\left[\mathrm{Fe}\left(\mathrm{NH}_{3}\right)_{6}\right]^{3+}\)
3 \(\left[\mathrm{Fe}\left(\mathrm{C}_{2} \mathrm{O}_{4}\right)_{3}\right]^{3-}\)
4 \(\left[\mathrm{FeCl}_{6}\right]^{3-}\)
CHXII09:COORDINATION COMPOUNDS

322088 Assertion :
\({{\text{K}}_{\text{2}}}{\text{[Ni(EDTA)]}}\) is more stable than \({{\text{K}}_{\text{3}}}\left[ {{\text{Al}}{{\left( {{{\text{C}}_{\text{2}}}{{\text{O}}_{\text{4}}}} \right)}_{\text{3}}}} \right]\)
Reason :
Nickel (Ni) is a transition element while aluminium (Al) is non-transistion element.

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

322089 Which complex compound is most stable?

1 \(\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{3}\left(\mathrm{NO}_{3}\right)_{3}\right]\)
2 \(\left[\mathrm{CoCl}_{2}\left(\mathrm{en}_{2}\right)\right] \mathrm{NO}_{3}\)
3 \(\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{6}\right]_{2}\left(\mathrm{SO}_{4}\right)_{3}\)
4 \(\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{4}\left(\mathrm{H}_{2} \mathrm{O}\right) \mathrm{Br}\right]\left(\mathrm{NO}_{3}\right)_{2}\)
NEET - 2023
CHXII09:COORDINATION COMPOUNDS

322090 Assertion :
Toxic metal ions are removed by the chelating ligands.
Reason :
Chelate complexes tend to be more stable.

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 Both Assertion and reason is incorrect.
AIIMS - 2018
NEET DIGITAL LIBRARY
CHXII09:COORDINATION COMPOUNDS

322086 Statement A :
Statement \(\mathrm{A}\) The stability of \(\left[\mathrm{Ni}(\mathrm{en})_{3}\right] \mathrm{Cl}_{2}\) is lower than that of \(\left[\mathrm{Ni}\left(\mathrm{NH}_{3}\right)_{6}\right] \mathrm{Cl}_{2}\).
Statement B :
The geometry of \(\mathrm{Ni}\) is trigonal bipyrimidal in \(\left[\mathrm{Ni}(\mathrm{en})_{3}\right] \mathrm{Cl}_{2}\).

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
CHXII09:COORDINATION COMPOUNDS

322087 Amongst the following, the most stable complex is

1 \(\left[\mathrm{Fe}\left(\mathrm{H}_{2} \mathrm{O}\right)_{6}\right]^{3+}\)
2 \(\left[\mathrm{Fe}\left(\mathrm{NH}_{3}\right)_{6}\right]^{3+}\)
3 \(\left[\mathrm{Fe}\left(\mathrm{C}_{2} \mathrm{O}_{4}\right)_{3}\right]^{3-}\)
4 \(\left[\mathrm{FeCl}_{6}\right]^{3-}\)
CHXII09:COORDINATION COMPOUNDS

322088 Assertion :
\({{\text{K}}_{\text{2}}}{\text{[Ni(EDTA)]}}\) is more stable than \({{\text{K}}_{\text{3}}}\left[ {{\text{Al}}{{\left( {{{\text{C}}_{\text{2}}}{{\text{O}}_{\text{4}}}} \right)}_{\text{3}}}} \right]\)
Reason :
Nickel (Ni) is a transition element while aluminium (Al) is non-transistion element.

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

322089 Which complex compound is most stable?

1 \(\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{3}\left(\mathrm{NO}_{3}\right)_{3}\right]\)
2 \(\left[\mathrm{CoCl}_{2}\left(\mathrm{en}_{2}\right)\right] \mathrm{NO}_{3}\)
3 \(\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{6}\right]_{2}\left(\mathrm{SO}_{4}\right)_{3}\)
4 \(\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{4}\left(\mathrm{H}_{2} \mathrm{O}\right) \mathrm{Br}\right]\left(\mathrm{NO}_{3}\right)_{2}\)
NEET - 2023
CHXII09:COORDINATION COMPOUNDS

322090 Assertion :
Toxic metal ions are removed by the chelating ligands.
Reason :
Chelate complexes tend to be more stable.

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 Both Assertion and reason is incorrect.
AIIMS - 2018