Valence Bond Theory
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CHXII09:COORDINATION COMPOUNDS

322315 The complex \(\left[\mathrm{Fe}\left(\mathrm{H}_{2} \mathrm{O}\right)_{5} \mathrm{NO}\right]^{2+}\) is formed in the brown ring test for nitrates, when freshly prepared \(\mathrm{FeSO}_{4}\) solution is added to aqueous solution of \(\mathrm{NO}_{3}^{-}\)followed by the addition of con. \(\mathrm{H}_{2} \mathrm{SO}_{4}\). Select the incorrect statement about this complex.

1 Colour change is due to charge transfer
2 It has iron in +1 oxidation state and nitrosyl as \(\mathrm{NO}^{+}\)
3 It has magnetic moment of \(3.87 \mathrm{BM}\) confirming three unpaired electrons in \(\mathrm{Fe}\)
4 It has iron in +2 oxidation state and nitrosyl as \(\mathrm{NO}^{+}\)
CHXII09:COORDINATION COMPOUNDS

322316 Which of the following complex is octahedral, diamagnetic and the most stable?

1 \(\left[\mathrm{Ni}\left(\mathrm{NH}_{3}\right)_{6}\right] \mathrm{Cl}_{2}\)
2 \(\mathrm{Na}_{3}\left[\mathrm{CoCl}_{6}\right]\)
3 \(\mathrm{K}_{3}\left[\mathrm{Co}(\mathrm{CN})_{6}\right]\)
4 \(\left[\mathrm{Co}\left(\mathrm{H}_{2} \mathrm{O}\right)_{6}\right] \mathrm{Cl}_{2}\)
JEE - 2023
CHXII09:COORDINATION COMPOUNDS

322317 Match Column I with Column II.
supporting img

Choose the correct answer from the options given below.

1 A - R, B - S, C - P, D - Q
2 A - Q , B - S, C - P, D - R
3 A - Q , B - P, C - S, D - R
4 A - S, B - R, C - Q , D - P
JEE - 2023
CHXII09:COORDINATION COMPOUNDS

322318 The number of unpaired electrons in \({\mathrm{\left[\mathrm{CoF}_{6}\right]^{3-}}}\) is

1 5
2 3
3 1
4 4
CHXII09:COORDINATION COMPOUNDS

322319 Assertion :
\(\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]^{3-}\) has \(\mathrm{d}^{2} \mathrm{sp}^{3}\) type hybridisation.
Reason :
\(\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]^{3-}\) ion shows magnetic moment corresponding to two unpaired electrons.

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.
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CHXII09:COORDINATION COMPOUNDS

322315 The complex \(\left[\mathrm{Fe}\left(\mathrm{H}_{2} \mathrm{O}\right)_{5} \mathrm{NO}\right]^{2+}\) is formed in the brown ring test for nitrates, when freshly prepared \(\mathrm{FeSO}_{4}\) solution is added to aqueous solution of \(\mathrm{NO}_{3}^{-}\)followed by the addition of con. \(\mathrm{H}_{2} \mathrm{SO}_{4}\). Select the incorrect statement about this complex.

1 Colour change is due to charge transfer
2 It has iron in +1 oxidation state and nitrosyl as \(\mathrm{NO}^{+}\)
3 It has magnetic moment of \(3.87 \mathrm{BM}\) confirming three unpaired electrons in \(\mathrm{Fe}\)
4 It has iron in +2 oxidation state and nitrosyl as \(\mathrm{NO}^{+}\)
CHXII09:COORDINATION COMPOUNDS

322316 Which of the following complex is octahedral, diamagnetic and the most stable?

1 \(\left[\mathrm{Ni}\left(\mathrm{NH}_{3}\right)_{6}\right] \mathrm{Cl}_{2}\)
2 \(\mathrm{Na}_{3}\left[\mathrm{CoCl}_{6}\right]\)
3 \(\mathrm{K}_{3}\left[\mathrm{Co}(\mathrm{CN})_{6}\right]\)
4 \(\left[\mathrm{Co}\left(\mathrm{H}_{2} \mathrm{O}\right)_{6}\right] \mathrm{Cl}_{2}\)
JEE - 2023
CHXII09:COORDINATION COMPOUNDS

322317 Match Column I with Column II.
supporting img

Choose the correct answer from the options given below.

1 A - R, B - S, C - P, D - Q
2 A - Q , B - S, C - P, D - R
3 A - Q , B - P, C - S, D - R
4 A - S, B - R, C - Q , D - P
JEE - 2023
CHXII09:COORDINATION COMPOUNDS

322318 The number of unpaired electrons in \({\mathrm{\left[\mathrm{CoF}_{6}\right]^{3-}}}\) is

1 5
2 3
3 1
4 4
CHXII09:COORDINATION COMPOUNDS

322319 Assertion :
\(\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]^{3-}\) has \(\mathrm{d}^{2} \mathrm{sp}^{3}\) type hybridisation.
Reason :
\(\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]^{3-}\) ion shows magnetic moment corresponding to two unpaired electrons.

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.
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CHXII09:COORDINATION COMPOUNDS

322315 The complex \(\left[\mathrm{Fe}\left(\mathrm{H}_{2} \mathrm{O}\right)_{5} \mathrm{NO}\right]^{2+}\) is formed in the brown ring test for nitrates, when freshly prepared \(\mathrm{FeSO}_{4}\) solution is added to aqueous solution of \(\mathrm{NO}_{3}^{-}\)followed by the addition of con. \(\mathrm{H}_{2} \mathrm{SO}_{4}\). Select the incorrect statement about this complex.

1 Colour change is due to charge transfer
2 It has iron in +1 oxidation state and nitrosyl as \(\mathrm{NO}^{+}\)
3 It has magnetic moment of \(3.87 \mathrm{BM}\) confirming three unpaired electrons in \(\mathrm{Fe}\)
4 It has iron in +2 oxidation state and nitrosyl as \(\mathrm{NO}^{+}\)
CHXII09:COORDINATION COMPOUNDS

322316 Which of the following complex is octahedral, diamagnetic and the most stable?

1 \(\left[\mathrm{Ni}\left(\mathrm{NH}_{3}\right)_{6}\right] \mathrm{Cl}_{2}\)
2 \(\mathrm{Na}_{3}\left[\mathrm{CoCl}_{6}\right]\)
3 \(\mathrm{K}_{3}\left[\mathrm{Co}(\mathrm{CN})_{6}\right]\)
4 \(\left[\mathrm{Co}\left(\mathrm{H}_{2} \mathrm{O}\right)_{6}\right] \mathrm{Cl}_{2}\)
JEE - 2023
CHXII09:COORDINATION COMPOUNDS

322317 Match Column I with Column II.
supporting img

Choose the correct answer from the options given below.

1 A - R, B - S, C - P, D - Q
2 A - Q , B - S, C - P, D - R
3 A - Q , B - P, C - S, D - R
4 A - S, B - R, C - Q , D - P
JEE - 2023
CHXII09:COORDINATION COMPOUNDS

322318 The number of unpaired electrons in \({\mathrm{\left[\mathrm{CoF}_{6}\right]^{3-}}}\) is

1 5
2 3
3 1
4 4
CHXII09:COORDINATION COMPOUNDS

322319 Assertion :
\(\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]^{3-}\) has \(\mathrm{d}^{2} \mathrm{sp}^{3}\) type hybridisation.
Reason :
\(\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]^{3-}\) ion shows magnetic moment corresponding to two unpaired electrons.

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.
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CHXII09:COORDINATION COMPOUNDS

322315 The complex \(\left[\mathrm{Fe}\left(\mathrm{H}_{2} \mathrm{O}\right)_{5} \mathrm{NO}\right]^{2+}\) is formed in the brown ring test for nitrates, when freshly prepared \(\mathrm{FeSO}_{4}\) solution is added to aqueous solution of \(\mathrm{NO}_{3}^{-}\)followed by the addition of con. \(\mathrm{H}_{2} \mathrm{SO}_{4}\). Select the incorrect statement about this complex.

1 Colour change is due to charge transfer
2 It has iron in +1 oxidation state and nitrosyl as \(\mathrm{NO}^{+}\)
3 It has magnetic moment of \(3.87 \mathrm{BM}\) confirming three unpaired electrons in \(\mathrm{Fe}\)
4 It has iron in +2 oxidation state and nitrosyl as \(\mathrm{NO}^{+}\)
CHXII09:COORDINATION COMPOUNDS

322316 Which of the following complex is octahedral, diamagnetic and the most stable?

1 \(\left[\mathrm{Ni}\left(\mathrm{NH}_{3}\right)_{6}\right] \mathrm{Cl}_{2}\)
2 \(\mathrm{Na}_{3}\left[\mathrm{CoCl}_{6}\right]\)
3 \(\mathrm{K}_{3}\left[\mathrm{Co}(\mathrm{CN})_{6}\right]\)
4 \(\left[\mathrm{Co}\left(\mathrm{H}_{2} \mathrm{O}\right)_{6}\right] \mathrm{Cl}_{2}\)
JEE - 2023
CHXII09:COORDINATION COMPOUNDS

322317 Match Column I with Column II.
supporting img

Choose the correct answer from the options given below.

1 A - R, B - S, C - P, D - Q
2 A - Q , B - S, C - P, D - R
3 A - Q , B - P, C - S, D - R
4 A - S, B - R, C - Q , D - P
JEE - 2023
CHXII09:COORDINATION COMPOUNDS

322318 The number of unpaired electrons in \({\mathrm{\left[\mathrm{CoF}_{6}\right]^{3-}}}\) is

1 5
2 3
3 1
4 4
CHXII09:COORDINATION COMPOUNDS

322319 Assertion :
\(\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]^{3-}\) has \(\mathrm{d}^{2} \mathrm{sp}^{3}\) type hybridisation.
Reason :
\(\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]^{3-}\) ion shows magnetic moment corresponding to two unpaired electrons.

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.
NEET DIGITAL LIBRARY
CHXII09:COORDINATION COMPOUNDS

322315 The complex \(\left[\mathrm{Fe}\left(\mathrm{H}_{2} \mathrm{O}\right)_{5} \mathrm{NO}\right]^{2+}\) is formed in the brown ring test for nitrates, when freshly prepared \(\mathrm{FeSO}_{4}\) solution is added to aqueous solution of \(\mathrm{NO}_{3}^{-}\)followed by the addition of con. \(\mathrm{H}_{2} \mathrm{SO}_{4}\). Select the incorrect statement about this complex.

1 Colour change is due to charge transfer
2 It has iron in +1 oxidation state and nitrosyl as \(\mathrm{NO}^{+}\)
3 It has magnetic moment of \(3.87 \mathrm{BM}\) confirming three unpaired electrons in \(\mathrm{Fe}\)
4 It has iron in +2 oxidation state and nitrosyl as \(\mathrm{NO}^{+}\)
CHXII09:COORDINATION COMPOUNDS

322316 Which of the following complex is octahedral, diamagnetic and the most stable?

1 \(\left[\mathrm{Ni}\left(\mathrm{NH}_{3}\right)_{6}\right] \mathrm{Cl}_{2}\)
2 \(\mathrm{Na}_{3}\left[\mathrm{CoCl}_{6}\right]\)
3 \(\mathrm{K}_{3}\left[\mathrm{Co}(\mathrm{CN})_{6}\right]\)
4 \(\left[\mathrm{Co}\left(\mathrm{H}_{2} \mathrm{O}\right)_{6}\right] \mathrm{Cl}_{2}\)
JEE - 2023
CHXII09:COORDINATION COMPOUNDS

322317 Match Column I with Column II.
supporting img

Choose the correct answer from the options given below.

1 A - R, B - S, C - P, D - Q
2 A - Q , B - S, C - P, D - R
3 A - Q , B - P, C - S, D - R
4 A - S, B - R, C - Q , D - P
JEE - 2023
CHXII09:COORDINATION COMPOUNDS

322318 The number of unpaired electrons in \({\mathrm{\left[\mathrm{CoF}_{6}\right]^{3-}}}\) is

1 5
2 3
3 1
4 4
CHXII09:COORDINATION COMPOUNDS

322319 Assertion :
\(\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]^{3-}\) has \(\mathrm{d}^{2} \mathrm{sp}^{3}\) type hybridisation.
Reason :
\(\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]^{3-}\) ion shows magnetic moment corresponding to two unpaired electrons.

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.