Importance and Application of Coordination Compounds
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CHXII09:COORDINATION COMPOUNDS

321917 Assertion :
Complex of calcium with EDTA is used to treat lead poisoning.
Reason :
EDTA is a hexadentate ligand.

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

321918 In the silver plating of copper, \(\mathrm{K}\left[\mathrm{Ag}(\mathrm{CN})_{2}\right]\) is used instead of \(\mathrm{AgNO}_{3}\). The reason is

1 A thin layer of \(\mathrm{Ag}\) is formed on \(\mathrm{Cu}\)
2 More voltage is required
3 \(\mathrm{Ag}^{+}\)ions are completely removed from solution
4 Less availability of \(\mathrm{Ag}^{+}\)ions, as \(\mathrm{Cu}\) cannot displace \(\mathrm{Ag}\) from \(\left[\mathrm{Ag}(\mathrm{CN})_{2}\right]^{-}\)ion
CHXII09:COORDINATION COMPOUNDS

321919 Identify the use of EDTA from the following.

1 treatment of lead poisoning
2 electroplating of noble metals
3 treatment for cancer
4 transmission of nerve signals.
MHTCET - 2022
CHXII09:COORDINATION COMPOUNDS

321920 The equation which is balanced and represents the correct product (s) is

1 \(\mathrm{LiO}_{2}+2 \mathrm{KCl} \longrightarrow 2 \mathrm{LiCl}+\mathrm{K}_{2} \mathrm{O}\)
2 \(\mathrm{CuSO}_{4}+4 \mathrm{KCN} \longrightarrow \mathrm{K}_{2}\left[\mathrm{Cu}(\mathrm{CN})_{4}\right]+\mathrm{K}_{2} \mathrm{SO}_{4}\)
3 \({\left[ {{\text{Mg}}{{\left( {{{\text{H}}_{\text{2}}}{\text{O}}} \right)}_{\text{6}}}} \right]^{{\text{2  +  }}}}{\text{  +  (EDTA}}{{\text{)}}^{{\text{4  -  }}}}\xrightarrow{{{\text{excess}}{\kern 1pt} {\kern 1pt} {\kern 1pt} {\text{NaOH}}}}\)
\({[{\text{Mg}}({\text{EDTA}})]^{{\text{2  +  }}}}{\text{  +  6}}{{\text{H}}_{\text{2}}}{{\text{O}}^{}}\)
4 \(\left[\mathrm{CoCl}\left(\mathrm{NH}_{3}\right)_{5}\right]^{+}+5 \mathrm{H}^{+} \longrightarrow \mathrm{Co}^{2+}+5 \mathrm{NH}_{4}^{+}+\mathrm{Cl}^{-}\)
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CHXII09:COORDINATION COMPOUNDS

321917 Assertion :
Complex of calcium with EDTA is used to treat lead poisoning.
Reason :
EDTA is a hexadentate ligand.

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

321918 In the silver plating of copper, \(\mathrm{K}\left[\mathrm{Ag}(\mathrm{CN})_{2}\right]\) is used instead of \(\mathrm{AgNO}_{3}\). The reason is

1 A thin layer of \(\mathrm{Ag}\) is formed on \(\mathrm{Cu}\)
2 More voltage is required
3 \(\mathrm{Ag}^{+}\)ions are completely removed from solution
4 Less availability of \(\mathrm{Ag}^{+}\)ions, as \(\mathrm{Cu}\) cannot displace \(\mathrm{Ag}\) from \(\left[\mathrm{Ag}(\mathrm{CN})_{2}\right]^{-}\)ion
CHXII09:COORDINATION COMPOUNDS

321919 Identify the use of EDTA from the following.

1 treatment of lead poisoning
2 electroplating of noble metals
3 treatment for cancer
4 transmission of nerve signals.
MHTCET - 2022
CHXII09:COORDINATION COMPOUNDS

321920 The equation which is balanced and represents the correct product (s) is

1 \(\mathrm{LiO}_{2}+2 \mathrm{KCl} \longrightarrow 2 \mathrm{LiCl}+\mathrm{K}_{2} \mathrm{O}\)
2 \(\mathrm{CuSO}_{4}+4 \mathrm{KCN} \longrightarrow \mathrm{K}_{2}\left[\mathrm{Cu}(\mathrm{CN})_{4}\right]+\mathrm{K}_{2} \mathrm{SO}_{4}\)
3 \({\left[ {{\text{Mg}}{{\left( {{{\text{H}}_{\text{2}}}{\text{O}}} \right)}_{\text{6}}}} \right]^{{\text{2  +  }}}}{\text{  +  (EDTA}}{{\text{)}}^{{\text{4  -  }}}}\xrightarrow{{{\text{excess}}{\kern 1pt} {\kern 1pt} {\kern 1pt} {\text{NaOH}}}}\)
\({[{\text{Mg}}({\text{EDTA}})]^{{\text{2  +  }}}}{\text{  +  6}}{{\text{H}}_{\text{2}}}{{\text{O}}^{}}\)
4 \(\left[\mathrm{CoCl}\left(\mathrm{NH}_{3}\right)_{5}\right]^{+}+5 \mathrm{H}^{+} \longrightarrow \mathrm{Co}^{2+}+5 \mathrm{NH}_{4}^{+}+\mathrm{Cl}^{-}\)
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CHXII09:COORDINATION COMPOUNDS

321917 Assertion :
Complex of calcium with EDTA is used to treat lead poisoning.
Reason :
EDTA is a hexadentate ligand.

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

321918 In the silver plating of copper, \(\mathrm{K}\left[\mathrm{Ag}(\mathrm{CN})_{2}\right]\) is used instead of \(\mathrm{AgNO}_{3}\). The reason is

1 A thin layer of \(\mathrm{Ag}\) is formed on \(\mathrm{Cu}\)
2 More voltage is required
3 \(\mathrm{Ag}^{+}\)ions are completely removed from solution
4 Less availability of \(\mathrm{Ag}^{+}\)ions, as \(\mathrm{Cu}\) cannot displace \(\mathrm{Ag}\) from \(\left[\mathrm{Ag}(\mathrm{CN})_{2}\right]^{-}\)ion
CHXII09:COORDINATION COMPOUNDS

321919 Identify the use of EDTA from the following.

1 treatment of lead poisoning
2 electroplating of noble metals
3 treatment for cancer
4 transmission of nerve signals.
MHTCET - 2022
CHXII09:COORDINATION COMPOUNDS

321920 The equation which is balanced and represents the correct product (s) is

1 \(\mathrm{LiO}_{2}+2 \mathrm{KCl} \longrightarrow 2 \mathrm{LiCl}+\mathrm{K}_{2} \mathrm{O}\)
2 \(\mathrm{CuSO}_{4}+4 \mathrm{KCN} \longrightarrow \mathrm{K}_{2}\left[\mathrm{Cu}(\mathrm{CN})_{4}\right]+\mathrm{K}_{2} \mathrm{SO}_{4}\)
3 \({\left[ {{\text{Mg}}{{\left( {{{\text{H}}_{\text{2}}}{\text{O}}} \right)}_{\text{6}}}} \right]^{{\text{2  +  }}}}{\text{  +  (EDTA}}{{\text{)}}^{{\text{4  -  }}}}\xrightarrow{{{\text{excess}}{\kern 1pt} {\kern 1pt} {\kern 1pt} {\text{NaOH}}}}\)
\({[{\text{Mg}}({\text{EDTA}})]^{{\text{2  +  }}}}{\text{  +  6}}{{\text{H}}_{\text{2}}}{{\text{O}}^{}}\)
4 \(\left[\mathrm{CoCl}\left(\mathrm{NH}_{3}\right)_{5}\right]^{+}+5 \mathrm{H}^{+} \longrightarrow \mathrm{Co}^{2+}+5 \mathrm{NH}_{4}^{+}+\mathrm{Cl}^{-}\)
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CHXII09:COORDINATION COMPOUNDS

321917 Assertion :
Complex of calcium with EDTA is used to treat lead poisoning.
Reason :
EDTA is a hexadentate ligand.

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

321918 In the silver plating of copper, \(\mathrm{K}\left[\mathrm{Ag}(\mathrm{CN})_{2}\right]\) is used instead of \(\mathrm{AgNO}_{3}\). The reason is

1 A thin layer of \(\mathrm{Ag}\) is formed on \(\mathrm{Cu}\)
2 More voltage is required
3 \(\mathrm{Ag}^{+}\)ions are completely removed from solution
4 Less availability of \(\mathrm{Ag}^{+}\)ions, as \(\mathrm{Cu}\) cannot displace \(\mathrm{Ag}\) from \(\left[\mathrm{Ag}(\mathrm{CN})_{2}\right]^{-}\)ion
CHXII09:COORDINATION COMPOUNDS

321919 Identify the use of EDTA from the following.

1 treatment of lead poisoning
2 electroplating of noble metals
3 treatment for cancer
4 transmission of nerve signals.
MHTCET - 2022
CHXII09:COORDINATION COMPOUNDS

321920 The equation which is balanced and represents the correct product (s) is

1 \(\mathrm{LiO}_{2}+2 \mathrm{KCl} \longrightarrow 2 \mathrm{LiCl}+\mathrm{K}_{2} \mathrm{O}\)
2 \(\mathrm{CuSO}_{4}+4 \mathrm{KCN} \longrightarrow \mathrm{K}_{2}\left[\mathrm{Cu}(\mathrm{CN})_{4}\right]+\mathrm{K}_{2} \mathrm{SO}_{4}\)
3 \({\left[ {{\text{Mg}}{{\left( {{{\text{H}}_{\text{2}}}{\text{O}}} \right)}_{\text{6}}}} \right]^{{\text{2  +  }}}}{\text{  +  (EDTA}}{{\text{)}}^{{\text{4  -  }}}}\xrightarrow{{{\text{excess}}{\kern 1pt} {\kern 1pt} {\kern 1pt} {\text{NaOH}}}}\)
\({[{\text{Mg}}({\text{EDTA}})]^{{\text{2  +  }}}}{\text{  +  6}}{{\text{H}}_{\text{2}}}{{\text{O}}^{}}\)
4 \(\left[\mathrm{CoCl}\left(\mathrm{NH}_{3}\right)_{5}\right]^{+}+5 \mathrm{H}^{+} \longrightarrow \mathrm{Co}^{2+}+5 \mathrm{NH}_{4}^{+}+\mathrm{Cl}^{-}\)
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