Importance and Application of Coordination Compounds
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CHXII09:COORDINATION COMPOUNDS

321900 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 Assertion is incorrect but reason is correct.
CHXII09:COORDINATION COMPOUNDS

321901 Read the Statement - A and Statement - B carefully to mark the correct options given below
Statement A :
Dimethyl glyoxime forms a sixmembered covalent chelate when treated with \({\mathrm{\mathrm{NiCl}_{2}}}\) solution in presence of \({\mathrm{\mathrm{NH}_{4} \mathrm{OH}}}\).
Statement B :
Prussian blue precipitate contains iron both in \({\mathrm{(+2)}}\) and \({\mathrm{(+3)}}\) oxidation states.

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.
JEE Main - 2024
CHXII09:COORDINATION COMPOUNDS

321902 Coordination compounds have great importance in biological systems. In this context which of the following statements is incorrect:

1 Carboxypeptidase A is an enzyme and contains zinc.
2 Haemoglobin is the red pigment of blood and contains iron.
3 Cyanocobalamin in \({{\text{B}}_{{\text{12}}}}\) and contains cobalt.
4 Chlorophylls are green pigments in plants and contain calcium.
CHXII09:COORDINATION COMPOUNDS

321903 \(\mathrm{AgCl}\) is dissolved in excess of \(\mathrm{NH}_{3}, \mathrm{KCN}\) and \(\mathrm{Na}_{2} \mathrm{~S}_{2} \mathrm{O}_{3}\) solutions. The complex produces ions

1 \(\left[\mathrm{Ag}\left(\mathrm{NH}_{3}\right)_{2}\right]^{+},\left[\mathrm{Ag}(\mathrm{CN})_{2}\right]^{-}\)
\({\text{& }}\,\,\,{\left[ {{\text{Ag}}{{\left( {{{\text{S}}_{\text{2}}}{{\text{O}}_{\text{3}}}} \right)}_{\text{2}}}} \right]^{{\text{3 - }}}}\)
2 \(\left[\mathrm{Ag}\left(\mathrm{NH}_{3}\right)_{2}\right]^{2+},\left[\mathrm{Ag}(\mathrm{CN})_{2}\right]^{3-}\)
\({\text{& }}\,\,\,{\left[ {{\text{A}}{{\text{g}}_{\text{4}}}{{\left( {{{\text{S}}_{\text{2}}}{{\text{O}}_{\text{3}}}} \right)}_{\text{5}}}} \right]^{{\text{2 + }}}}\)
3 \({\left[ {{\text{Ag}}{{\left( {{\text{N}}{{\text{H}}_{\text{3}}}} \right)}_{\text{2}}}} \right]^{{\text{2 + }}}}{\text{,}}{\left[ {{\text{Ag}}{{\left( {{\text{C}}{{\text{N}}_{\text{2}}}} \right)}_{\text{2}}}} \right]^{\text{ + }}}\)
\({\text{& }}\,\,{\left[ {{\text{A}}{{\text{g}}_{\text{2}}}{{\left( {{{\text{S}}_{\text{2}}}{{\text{O}}_{\text{3}}}} \right)}_{\text{2}}}} \right]^{{\text{2 - }}}}\)
4 \({\left[ {{\text{Ag}}{{\left( {{\text{N}}{{\text{H}}_{\text{3}}}} \right)}_{\text{4}}}} \right]^{\text{ + }}}{\text{,}}{\left[ {{\text{Ag(CN}}{{\text{)}}_{\text{4}}}} \right]^{{\text{3 - }}}}{\text{,}}\)
\({\text{& }}\,\,\,{\left[ {{\text{A}}{{\text{g}}_{\text{2}}}{{\left( {{{\text{S}}_{\text{2}}}{{\text{O}}_{\text{3}}}} \right)}_{\text{2}}}} \right]^{{\text{2 - }}}}\)
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CHXII09:COORDINATION COMPOUNDS

321900 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 Assertion is incorrect but reason is correct.
CHXII09:COORDINATION COMPOUNDS

321901 Read the Statement - A and Statement - B carefully to mark the correct options given below
Statement A :
Dimethyl glyoxime forms a sixmembered covalent chelate when treated with \({\mathrm{\mathrm{NiCl}_{2}}}\) solution in presence of \({\mathrm{\mathrm{NH}_{4} \mathrm{OH}}}\).
Statement B :
Prussian blue precipitate contains iron both in \({\mathrm{(+2)}}\) and \({\mathrm{(+3)}}\) oxidation states.

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.
JEE Main - 2024
CHXII09:COORDINATION COMPOUNDS

321902 Coordination compounds have great importance in biological systems. In this context which of the following statements is incorrect:

1 Carboxypeptidase A is an enzyme and contains zinc.
2 Haemoglobin is the red pigment of blood and contains iron.
3 Cyanocobalamin in \({{\text{B}}_{{\text{12}}}}\) and contains cobalt.
4 Chlorophylls are green pigments in plants and contain calcium.
CHXII09:COORDINATION COMPOUNDS

321903 \(\mathrm{AgCl}\) is dissolved in excess of \(\mathrm{NH}_{3}, \mathrm{KCN}\) and \(\mathrm{Na}_{2} \mathrm{~S}_{2} \mathrm{O}_{3}\) solutions. The complex produces ions

1 \(\left[\mathrm{Ag}\left(\mathrm{NH}_{3}\right)_{2}\right]^{+},\left[\mathrm{Ag}(\mathrm{CN})_{2}\right]^{-}\)
\({\text{& }}\,\,\,{\left[ {{\text{Ag}}{{\left( {{{\text{S}}_{\text{2}}}{{\text{O}}_{\text{3}}}} \right)}_{\text{2}}}} \right]^{{\text{3 - }}}}\)
2 \(\left[\mathrm{Ag}\left(\mathrm{NH}_{3}\right)_{2}\right]^{2+},\left[\mathrm{Ag}(\mathrm{CN})_{2}\right]^{3-}\)
\({\text{& }}\,\,\,{\left[ {{\text{A}}{{\text{g}}_{\text{4}}}{{\left( {{{\text{S}}_{\text{2}}}{{\text{O}}_{\text{3}}}} \right)}_{\text{5}}}} \right]^{{\text{2 + }}}}\)
3 \({\left[ {{\text{Ag}}{{\left( {{\text{N}}{{\text{H}}_{\text{3}}}} \right)}_{\text{2}}}} \right]^{{\text{2 + }}}}{\text{,}}{\left[ {{\text{Ag}}{{\left( {{\text{C}}{{\text{N}}_{\text{2}}}} \right)}_{\text{2}}}} \right]^{\text{ + }}}\)
\({\text{& }}\,\,{\left[ {{\text{A}}{{\text{g}}_{\text{2}}}{{\left( {{{\text{S}}_{\text{2}}}{{\text{O}}_{\text{3}}}} \right)}_{\text{2}}}} \right]^{{\text{2 - }}}}\)
4 \({\left[ {{\text{Ag}}{{\left( {{\text{N}}{{\text{H}}_{\text{3}}}} \right)}_{\text{4}}}} \right]^{\text{ + }}}{\text{,}}{\left[ {{\text{Ag(CN}}{{\text{)}}_{\text{4}}}} \right]^{{\text{3 - }}}}{\text{,}}\)
\({\text{& }}\,\,\,{\left[ {{\text{A}}{{\text{g}}_{\text{2}}}{{\left( {{{\text{S}}_{\text{2}}}{{\text{O}}_{\text{3}}}} \right)}_{\text{2}}}} \right]^{{\text{2 - }}}}\)
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CHXII09:COORDINATION COMPOUNDS

321900 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 Assertion is incorrect but reason is correct.
CHXII09:COORDINATION COMPOUNDS

321901 Read the Statement - A and Statement - B carefully to mark the correct options given below
Statement A :
Dimethyl glyoxime forms a sixmembered covalent chelate when treated with \({\mathrm{\mathrm{NiCl}_{2}}}\) solution in presence of \({\mathrm{\mathrm{NH}_{4} \mathrm{OH}}}\).
Statement B :
Prussian blue precipitate contains iron both in \({\mathrm{(+2)}}\) and \({\mathrm{(+3)}}\) oxidation states.

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.
JEE Main - 2024
CHXII09:COORDINATION COMPOUNDS

321902 Coordination compounds have great importance in biological systems. In this context which of the following statements is incorrect:

1 Carboxypeptidase A is an enzyme and contains zinc.
2 Haemoglobin is the red pigment of blood and contains iron.
3 Cyanocobalamin in \({{\text{B}}_{{\text{12}}}}\) and contains cobalt.
4 Chlorophylls are green pigments in plants and contain calcium.
CHXII09:COORDINATION COMPOUNDS

321903 \(\mathrm{AgCl}\) is dissolved in excess of \(\mathrm{NH}_{3}, \mathrm{KCN}\) and \(\mathrm{Na}_{2} \mathrm{~S}_{2} \mathrm{O}_{3}\) solutions. The complex produces ions

1 \(\left[\mathrm{Ag}\left(\mathrm{NH}_{3}\right)_{2}\right]^{+},\left[\mathrm{Ag}(\mathrm{CN})_{2}\right]^{-}\)
\({\text{& }}\,\,\,{\left[ {{\text{Ag}}{{\left( {{{\text{S}}_{\text{2}}}{{\text{O}}_{\text{3}}}} \right)}_{\text{2}}}} \right]^{{\text{3 - }}}}\)
2 \(\left[\mathrm{Ag}\left(\mathrm{NH}_{3}\right)_{2}\right]^{2+},\left[\mathrm{Ag}(\mathrm{CN})_{2}\right]^{3-}\)
\({\text{& }}\,\,\,{\left[ {{\text{A}}{{\text{g}}_{\text{4}}}{{\left( {{{\text{S}}_{\text{2}}}{{\text{O}}_{\text{3}}}} \right)}_{\text{5}}}} \right]^{{\text{2 + }}}}\)
3 \({\left[ {{\text{Ag}}{{\left( {{\text{N}}{{\text{H}}_{\text{3}}}} \right)}_{\text{2}}}} \right]^{{\text{2 + }}}}{\text{,}}{\left[ {{\text{Ag}}{{\left( {{\text{C}}{{\text{N}}_{\text{2}}}} \right)}_{\text{2}}}} \right]^{\text{ + }}}\)
\({\text{& }}\,\,{\left[ {{\text{A}}{{\text{g}}_{\text{2}}}{{\left( {{{\text{S}}_{\text{2}}}{{\text{O}}_{\text{3}}}} \right)}_{\text{2}}}} \right]^{{\text{2 - }}}}\)
4 \({\left[ {{\text{Ag}}{{\left( {{\text{N}}{{\text{H}}_{\text{3}}}} \right)}_{\text{4}}}} \right]^{\text{ + }}}{\text{,}}{\left[ {{\text{Ag(CN}}{{\text{)}}_{\text{4}}}} \right]^{{\text{3 - }}}}{\text{,}}\)
\({\text{& }}\,\,\,{\left[ {{\text{A}}{{\text{g}}_{\text{2}}}{{\left( {{{\text{S}}_{\text{2}}}{{\text{O}}_{\text{3}}}} \right)}_{\text{2}}}} \right]^{{\text{2 - }}}}\)
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CHXII09:COORDINATION COMPOUNDS

321900 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 Assertion is incorrect but reason is correct.
CHXII09:COORDINATION COMPOUNDS

321901 Read the Statement - A and Statement - B carefully to mark the correct options given below
Statement A :
Dimethyl glyoxime forms a sixmembered covalent chelate when treated with \({\mathrm{\mathrm{NiCl}_{2}}}\) solution in presence of \({\mathrm{\mathrm{NH}_{4} \mathrm{OH}}}\).
Statement B :
Prussian blue precipitate contains iron both in \({\mathrm{(+2)}}\) and \({\mathrm{(+3)}}\) oxidation states.

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.
JEE Main - 2024
CHXII09:COORDINATION COMPOUNDS

321902 Coordination compounds have great importance in biological systems. In this context which of the following statements is incorrect:

1 Carboxypeptidase A is an enzyme and contains zinc.
2 Haemoglobin is the red pigment of blood and contains iron.
3 Cyanocobalamin in \({{\text{B}}_{{\text{12}}}}\) and contains cobalt.
4 Chlorophylls are green pigments in plants and contain calcium.
CHXII09:COORDINATION COMPOUNDS

321903 \(\mathrm{AgCl}\) is dissolved in excess of \(\mathrm{NH}_{3}, \mathrm{KCN}\) and \(\mathrm{Na}_{2} \mathrm{~S}_{2} \mathrm{O}_{3}\) solutions. The complex produces ions

1 \(\left[\mathrm{Ag}\left(\mathrm{NH}_{3}\right)_{2}\right]^{+},\left[\mathrm{Ag}(\mathrm{CN})_{2}\right]^{-}\)
\({\text{& }}\,\,\,{\left[ {{\text{Ag}}{{\left( {{{\text{S}}_{\text{2}}}{{\text{O}}_{\text{3}}}} \right)}_{\text{2}}}} \right]^{{\text{3 - }}}}\)
2 \(\left[\mathrm{Ag}\left(\mathrm{NH}_{3}\right)_{2}\right]^{2+},\left[\mathrm{Ag}(\mathrm{CN})_{2}\right]^{3-}\)
\({\text{& }}\,\,\,{\left[ {{\text{A}}{{\text{g}}_{\text{4}}}{{\left( {{{\text{S}}_{\text{2}}}{{\text{O}}_{\text{3}}}} \right)}_{\text{5}}}} \right]^{{\text{2 + }}}}\)
3 \({\left[ {{\text{Ag}}{{\left( {{\text{N}}{{\text{H}}_{\text{3}}}} \right)}_{\text{2}}}} \right]^{{\text{2 + }}}}{\text{,}}{\left[ {{\text{Ag}}{{\left( {{\text{C}}{{\text{N}}_{\text{2}}}} \right)}_{\text{2}}}} \right]^{\text{ + }}}\)
\({\text{& }}\,\,{\left[ {{\text{A}}{{\text{g}}_{\text{2}}}{{\left( {{{\text{S}}_{\text{2}}}{{\text{O}}_{\text{3}}}} \right)}_{\text{2}}}} \right]^{{\text{2 - }}}}\)
4 \({\left[ {{\text{Ag}}{{\left( {{\text{N}}{{\text{H}}_{\text{3}}}} \right)}_{\text{4}}}} \right]^{\text{ + }}}{\text{,}}{\left[ {{\text{Ag(CN}}{{\text{)}}_{\text{4}}}} \right]^{{\text{3 - }}}}{\text{,}}\)
\({\text{& }}\,\,\,{\left[ {{\text{A}}{{\text{g}}_{\text{2}}}{{\left( {{{\text{S}}_{\text{2}}}{{\text{O}}_{\text{3}}}} \right)}_{\text{2}}}} \right]^{{\text{2 - }}}}\)
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