01. Nomenclature
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NEET DIGITAL LIBRARY
COORDINATION COMPOUNDS

274007 The calculated magnetic moments (spin only value) for species
$\left[\mathrm{FeCl}_{4}\right]^{2-}, \quad\left[\mathrm{Co}\left(\mathrm{C}_{2} \mathrm{O}_{4}\right)_{3}\right]^{3-}$ and $\mathrm{MnO}_{4}{ }^{2-}$ respectively are

1 5.82, 0 and $0 \mathrm{BM}$
2 4.90,0 and 1.73 BM
3 $5.92,4.90$ and $0 \mathrm{BM}$
4 4.80, 0 and 2.83 BM
JEE Main 2021
COORDINATION COMPOUNDS

274008 In which of the following order the given complex ions are arranged correctly with respect to their decreasing spin only magnetic moment?
i. $\left[\mathrm{FeF}_{6}\right]^{3-}$
ii. $\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{6}\right]^{3+}$
iii. $\left[\mathrm{NiCl}_{4}\right]^{2-}$
iv. $\left[\mathrm{Cu}\left(\mathrm{NH}_{3}\right)_{4}\right]^{2+}$

1 (i) $>$ (iii) $>$ (iv) $>$ (ii)
2 (ii) $>$ (iii) $>$ (i) $>$ (iv)
3 (iii) $>$ (iv) $>$ (ii) $>$ (i)
4 (ii) $>$ (i) $>$ (iii) $>$ (iv)
JEE Main 2021
COORDINATION COMPOUNDS

274009 What is the spin-only magnetic moment value (BM) of a divalent metal ion with atomic number 25, in it's aqueous solution?

1 5.92
2 5.0
3 zero
4 5.26
JEE Main 2021
COORDINATION COMPOUNDS

274011 If atomic number of element is 26 , then magnetic moment is $B M$ of its divalent aqueous ion?

1 1.73
2 3.87
3 2.83
4 4.90
GUJCET-2021]**
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COORDINATION COMPOUNDS

274007 The calculated magnetic moments (spin only value) for species
$\left[\mathrm{FeCl}_{4}\right]^{2-}, \quad\left[\mathrm{Co}\left(\mathrm{C}_{2} \mathrm{O}_{4}\right)_{3}\right]^{3-}$ and $\mathrm{MnO}_{4}{ }^{2-}$ respectively are

1 5.82, 0 and $0 \mathrm{BM}$
2 4.90,0 and 1.73 BM
3 $5.92,4.90$ and $0 \mathrm{BM}$
4 4.80, 0 and 2.83 BM
JEE Main 2021
COORDINATION COMPOUNDS

274008 In which of the following order the given complex ions are arranged correctly with respect to their decreasing spin only magnetic moment?
i. $\left[\mathrm{FeF}_{6}\right]^{3-}$
ii. $\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{6}\right]^{3+}$
iii. $\left[\mathrm{NiCl}_{4}\right]^{2-}$
iv. $\left[\mathrm{Cu}\left(\mathrm{NH}_{3}\right)_{4}\right]^{2+}$

1 (i) $>$ (iii) $>$ (iv) $>$ (ii)
2 (ii) $>$ (iii) $>$ (i) $>$ (iv)
3 (iii) $>$ (iv) $>$ (ii) $>$ (i)
4 (ii) $>$ (i) $>$ (iii) $>$ (iv)
JEE Main 2021
COORDINATION COMPOUNDS

274009 What is the spin-only magnetic moment value (BM) of a divalent metal ion with atomic number 25, in it's aqueous solution?

1 5.92
2 5.0
3 zero
4 5.26
JEE Main 2021
COORDINATION COMPOUNDS

274011 If atomic number of element is 26 , then magnetic moment is $B M$ of its divalent aqueous ion?

1 1.73
2 3.87
3 2.83
4 4.90
GUJCET-2021]**
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COORDINATION COMPOUNDS

274007 The calculated magnetic moments (spin only value) for species
$\left[\mathrm{FeCl}_{4}\right]^{2-}, \quad\left[\mathrm{Co}\left(\mathrm{C}_{2} \mathrm{O}_{4}\right)_{3}\right]^{3-}$ and $\mathrm{MnO}_{4}{ }^{2-}$ respectively are

1 5.82, 0 and $0 \mathrm{BM}$
2 4.90,0 and 1.73 BM
3 $5.92,4.90$ and $0 \mathrm{BM}$
4 4.80, 0 and 2.83 BM
JEE Main 2021
COORDINATION COMPOUNDS

274008 In which of the following order the given complex ions are arranged correctly with respect to their decreasing spin only magnetic moment?
i. $\left[\mathrm{FeF}_{6}\right]^{3-}$
ii. $\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{6}\right]^{3+}$
iii. $\left[\mathrm{NiCl}_{4}\right]^{2-}$
iv. $\left[\mathrm{Cu}\left(\mathrm{NH}_{3}\right)_{4}\right]^{2+}$

1 (i) $>$ (iii) $>$ (iv) $>$ (ii)
2 (ii) $>$ (iii) $>$ (i) $>$ (iv)
3 (iii) $>$ (iv) $>$ (ii) $>$ (i)
4 (ii) $>$ (i) $>$ (iii) $>$ (iv)
JEE Main 2021
COORDINATION COMPOUNDS

274009 What is the spin-only magnetic moment value (BM) of a divalent metal ion with atomic number 25, in it's aqueous solution?

1 5.92
2 5.0
3 zero
4 5.26
JEE Main 2021
COORDINATION COMPOUNDS

274011 If atomic number of element is 26 , then magnetic moment is $B M$ of its divalent aqueous ion?

1 1.73
2 3.87
3 2.83
4 4.90
GUJCET-2021]**
NEET DIGITAL LIBRARY
COORDINATION COMPOUNDS

274007 The calculated magnetic moments (spin only value) for species
$\left[\mathrm{FeCl}_{4}\right]^{2-}, \quad\left[\mathrm{Co}\left(\mathrm{C}_{2} \mathrm{O}_{4}\right)_{3}\right]^{3-}$ and $\mathrm{MnO}_{4}{ }^{2-}$ respectively are

1 5.82, 0 and $0 \mathrm{BM}$
2 4.90,0 and 1.73 BM
3 $5.92,4.90$ and $0 \mathrm{BM}$
4 4.80, 0 and 2.83 BM
JEE Main 2021
COORDINATION COMPOUNDS

274008 In which of the following order the given complex ions are arranged correctly with respect to their decreasing spin only magnetic moment?
i. $\left[\mathrm{FeF}_{6}\right]^{3-}$
ii. $\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{6}\right]^{3+}$
iii. $\left[\mathrm{NiCl}_{4}\right]^{2-}$
iv. $\left[\mathrm{Cu}\left(\mathrm{NH}_{3}\right)_{4}\right]^{2+}$

1 (i) $>$ (iii) $>$ (iv) $>$ (ii)
2 (ii) $>$ (iii) $>$ (i) $>$ (iv)
3 (iii) $>$ (iv) $>$ (ii) $>$ (i)
4 (ii) $>$ (i) $>$ (iii) $>$ (iv)
JEE Main 2021
COORDINATION COMPOUNDS

274009 What is the spin-only magnetic moment value (BM) of a divalent metal ion with atomic number 25, in it's aqueous solution?

1 5.92
2 5.0
3 zero
4 5.26
JEE Main 2021
COORDINATION COMPOUNDS

274011 If atomic number of element is 26 , then magnetic moment is $B M$ of its divalent aqueous ion?

1 1.73
2 3.87
3 2.83
4 4.90
GUJCET-2021]**
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