\(\bullet \mathrm{Fe}^{3+}:[\mathrm{Ar}] 3 \mathrm{~d}^{5}\) In presence of weak field ligand, \(\left[\mathrm{FeF}_{6}\right]^{3-}:\)
\(\mu=\sqrt{\mathrm{n}(\mathrm{n}+2)}=\sqrt{5(5+2)}=\sqrt{35}=5.916\) B.M. \( \bullet \) \(\mathrm{Co}^{3+}:[\mathrm{Ar}] 3 \mathrm{~d}^{6}\) In the presence of strong field ligand, \(\left[\mathrm{Co}\left(\mathrm{C}_{2} \mathrm{O}_{4}\right)_{3}\right]^{3}\)
\(\mathrm{n}=0, \quad \mu=0\) \(\bullet \mathrm{Co}^{3+}:[\mathrm{Ar}] 3 \mathrm{~d}^{6}\) the presence of weak field ligand, \(\left[\mathrm{CoF}_{6}\right]^{3-}\) :
\(\mathrm{n}=4\)\(\mu=\sqrt{4(4+2)}=\sqrt{24}=4.89\)B.M. Hence, the correct order of spin only magnetic moments is \(\left[\mathrm{FeF}_{6}\right]^{3-}>\left[\mathrm{CoF}_{6}\right]^{3-}>\left[\mathrm{Co}\left(\mathrm{C}_{2} \mathrm{O}_{4}\right)_{3}\right]^{3-}\).
JEE - 2023
CHXII09:COORDINATION COMPOUNDS
322061
Match the column I with column II and choose the correct option.
1 \({\text{A - P, B - Q, C - R, D - S}}\)
2 \({\text{A - S, B - R, C - P, D - Q}}\)
3 \({\text{A - R, B - S, C - Q, D - P}}\)
4 \({\text{A - Q, B - P, C - S, D - R}}\)
Explanation:
A - R, B - S, C- Q, D -P
CHXII09:COORDINATION COMPOUNDS
322062
The correct formula of the complex tetraammineaquachloridocobalt (III) chloride is
The correct formula of the complex tetraammineaquachloridocobalt(III)chloride is \(\left[\mathrm{CoCl}\left(\mathrm{H}_{2} \mathrm{O}\right)\left(\mathrm{NH}_{3}\right)_{4}\right] \mathrm{Cl}_{2}\), because in it the oxidation number of \(\mathrm{Co}\) is +3 . \(\begin{aligned}& {\left[\mathrm{CoCl}\left(\mathrm{H}_{2} \mathrm{O}\right)\left(\mathrm{NH}_{3}\right)_{4}\right] \mathrm{Cl}_{2}} \\& x+(-1)+0+(0 \times 4)+(-1) 2=0 \\& x-3=0, x=+3\end{aligned}\)
\(\bullet \mathrm{Fe}^{3+}:[\mathrm{Ar}] 3 \mathrm{~d}^{5}\) In presence of weak field ligand, \(\left[\mathrm{FeF}_{6}\right]^{3-}:\)
\(\mu=\sqrt{\mathrm{n}(\mathrm{n}+2)}=\sqrt{5(5+2)}=\sqrt{35}=5.916\) B.M. \( \bullet \) \(\mathrm{Co}^{3+}:[\mathrm{Ar}] 3 \mathrm{~d}^{6}\) In the presence of strong field ligand, \(\left[\mathrm{Co}\left(\mathrm{C}_{2} \mathrm{O}_{4}\right)_{3}\right]^{3}\)
\(\mathrm{n}=0, \quad \mu=0\) \(\bullet \mathrm{Co}^{3+}:[\mathrm{Ar}] 3 \mathrm{~d}^{6}\) the presence of weak field ligand, \(\left[\mathrm{CoF}_{6}\right]^{3-}\) :
\(\mathrm{n}=4\)\(\mu=\sqrt{4(4+2)}=\sqrt{24}=4.89\)B.M. Hence, the correct order of spin only magnetic moments is \(\left[\mathrm{FeF}_{6}\right]^{3-}>\left[\mathrm{CoF}_{6}\right]^{3-}>\left[\mathrm{Co}\left(\mathrm{C}_{2} \mathrm{O}_{4}\right)_{3}\right]^{3-}\).
JEE - 2023
CHXII09:COORDINATION COMPOUNDS
322061
Match the column I with column II and choose the correct option.
1 \({\text{A - P, B - Q, C - R, D - S}}\)
2 \({\text{A - S, B - R, C - P, D - Q}}\)
3 \({\text{A - R, B - S, C - Q, D - P}}\)
4 \({\text{A - Q, B - P, C - S, D - R}}\)
Explanation:
A - R, B - S, C- Q, D -P
CHXII09:COORDINATION COMPOUNDS
322062
The correct formula of the complex tetraammineaquachloridocobalt (III) chloride is
The correct formula of the complex tetraammineaquachloridocobalt(III)chloride is \(\left[\mathrm{CoCl}\left(\mathrm{H}_{2} \mathrm{O}\right)\left(\mathrm{NH}_{3}\right)_{4}\right] \mathrm{Cl}_{2}\), because in it the oxidation number of \(\mathrm{Co}\) is +3 . \(\begin{aligned}& {\left[\mathrm{CoCl}\left(\mathrm{H}_{2} \mathrm{O}\right)\left(\mathrm{NH}_{3}\right)_{4}\right] \mathrm{Cl}_{2}} \\& x+(-1)+0+(0 \times 4)+(-1) 2=0 \\& x-3=0, x=+3\end{aligned}\)
\(\bullet \mathrm{Fe}^{3+}:[\mathrm{Ar}] 3 \mathrm{~d}^{5}\) In presence of weak field ligand, \(\left[\mathrm{FeF}_{6}\right]^{3-}:\)
\(\mu=\sqrt{\mathrm{n}(\mathrm{n}+2)}=\sqrt{5(5+2)}=\sqrt{35}=5.916\) B.M. \( \bullet \) \(\mathrm{Co}^{3+}:[\mathrm{Ar}] 3 \mathrm{~d}^{6}\) In the presence of strong field ligand, \(\left[\mathrm{Co}\left(\mathrm{C}_{2} \mathrm{O}_{4}\right)_{3}\right]^{3}\)
\(\mathrm{n}=0, \quad \mu=0\) \(\bullet \mathrm{Co}^{3+}:[\mathrm{Ar}] 3 \mathrm{~d}^{6}\) the presence of weak field ligand, \(\left[\mathrm{CoF}_{6}\right]^{3-}\) :
\(\mathrm{n}=4\)\(\mu=\sqrt{4(4+2)}=\sqrt{24}=4.89\)B.M. Hence, the correct order of spin only magnetic moments is \(\left[\mathrm{FeF}_{6}\right]^{3-}>\left[\mathrm{CoF}_{6}\right]^{3-}>\left[\mathrm{Co}\left(\mathrm{C}_{2} \mathrm{O}_{4}\right)_{3}\right]^{3-}\).
JEE - 2023
CHXII09:COORDINATION COMPOUNDS
322061
Match the column I with column II and choose the correct option.
1 \({\text{A - P, B - Q, C - R, D - S}}\)
2 \({\text{A - S, B - R, C - P, D - Q}}\)
3 \({\text{A - R, B - S, C - Q, D - P}}\)
4 \({\text{A - Q, B - P, C - S, D - R}}\)
Explanation:
A - R, B - S, C- Q, D -P
CHXII09:COORDINATION COMPOUNDS
322062
The correct formula of the complex tetraammineaquachloridocobalt (III) chloride is
The correct formula of the complex tetraammineaquachloridocobalt(III)chloride is \(\left[\mathrm{CoCl}\left(\mathrm{H}_{2} \mathrm{O}\right)\left(\mathrm{NH}_{3}\right)_{4}\right] \mathrm{Cl}_{2}\), because in it the oxidation number of \(\mathrm{Co}\) is +3 . \(\begin{aligned}& {\left[\mathrm{CoCl}\left(\mathrm{H}_{2} \mathrm{O}\right)\left(\mathrm{NH}_{3}\right)_{4}\right] \mathrm{Cl}_{2}} \\& x+(-1)+0+(0 \times 4)+(-1) 2=0 \\& x-3=0, x=+3\end{aligned}\)
\(\bullet \mathrm{Fe}^{3+}:[\mathrm{Ar}] 3 \mathrm{~d}^{5}\) In presence of weak field ligand, \(\left[\mathrm{FeF}_{6}\right]^{3-}:\)
\(\mu=\sqrt{\mathrm{n}(\mathrm{n}+2)}=\sqrt{5(5+2)}=\sqrt{35}=5.916\) B.M. \( \bullet \) \(\mathrm{Co}^{3+}:[\mathrm{Ar}] 3 \mathrm{~d}^{6}\) In the presence of strong field ligand, \(\left[\mathrm{Co}\left(\mathrm{C}_{2} \mathrm{O}_{4}\right)_{3}\right]^{3}\)
\(\mathrm{n}=0, \quad \mu=0\) \(\bullet \mathrm{Co}^{3+}:[\mathrm{Ar}] 3 \mathrm{~d}^{6}\) the presence of weak field ligand, \(\left[\mathrm{CoF}_{6}\right]^{3-}\) :
\(\mathrm{n}=4\)\(\mu=\sqrt{4(4+2)}=\sqrt{24}=4.89\)B.M. Hence, the correct order of spin only magnetic moments is \(\left[\mathrm{FeF}_{6}\right]^{3-}>\left[\mathrm{CoF}_{6}\right]^{3-}>\left[\mathrm{Co}\left(\mathrm{C}_{2} \mathrm{O}_{4}\right)_{3}\right]^{3-}\).
JEE - 2023
CHXII09:COORDINATION COMPOUNDS
322061
Match the column I with column II and choose the correct option.
1 \({\text{A - P, B - Q, C - R, D - S}}\)
2 \({\text{A - S, B - R, C - P, D - Q}}\)
3 \({\text{A - R, B - S, C - Q, D - P}}\)
4 \({\text{A - Q, B - P, C - S, D - R}}\)
Explanation:
A - R, B - S, C- Q, D -P
CHXII09:COORDINATION COMPOUNDS
322062
The correct formula of the complex tetraammineaquachloridocobalt (III) chloride is
The correct formula of the complex tetraammineaquachloridocobalt(III)chloride is \(\left[\mathrm{CoCl}\left(\mathrm{H}_{2} \mathrm{O}\right)\left(\mathrm{NH}_{3}\right)_{4}\right] \mathrm{Cl}_{2}\), because in it the oxidation number of \(\mathrm{Co}\) is +3 . \(\begin{aligned}& {\left[\mathrm{CoCl}\left(\mathrm{H}_{2} \mathrm{O}\right)\left(\mathrm{NH}_{3}\right)_{4}\right] \mathrm{Cl}_{2}} \\& x+(-1)+0+(0 \times 4)+(-1) 2=0 \\& x-3=0, x=+3\end{aligned}\)
