162454
Which of the following carbonyls will have the strongest \(\mathrm{C}-\mathrm{O}\) bond :
1 \(\mathrm{Mn}(\mathrm{CO})_6^{+}\)
2 \(\mathrm{Cr}(\mathrm{CO})_6\)
3 \(\mathrm{V}(\mathrm{CO})_6^{-}\)
4 \(\mathrm{Fe}(\mathrm{CO})_5\)
Explanation:
The presence of +ve charge on the metal carbonyl would resist the flow of the metal electron charge to \(\pi^*\) orbitals of \(\mathrm{CO}\). This could increase the \(\mathrm{CO}\) bond order and hence absorb at a higher frequency compared to its absorption in a neutral metal carbonyl.
NCERT-XII-136
9 RBTS PAPER
162455
Amongest the following ions which one has the highest magnetic moment value :
More the number of unpaired electron, higher in the magnetic moment.
\(\mathrm{Fe}^{+2}=3 \mathrm{~d}^6 4 \mathrm{~s}^0\) Configuration
No. of unpaired electrons \(=4\)
NCERT-XII-130
9 RBTS PAPER
162456
Which one of the following coordination compounds is used to inhibit the growth of tumours:
1 Trans - \(\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_3 \mathrm{Cl}_3\right]\)
4 Trans - \(\left[\mathrm{PtCl}_2\left(\mathrm{NH}_3\right)_2\right]\)
Explanation:
Cis - \(\left\) is used to inhibit the growth of tumours.
PYQ
9 RBTS PAPER
162457
The degenerate orbitals of \(\left[\mathrm{Cr}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{3+}\) are :
1 \(d_{y z}, d_{z^2}, d_{x^2-y^2}\)
2 \(d_{z^2}, d_{x z}, d_{y z}\)
3 \(d_{x y}, d_{y z}, d_{z x}\)
4 \(d_{x^2-y^2}, d_{x y}, d_{z^2}\)
Explanation:
Degenerate orbitals of \(\left^{+3}\)
Hence according to the options given degenerate orbitals are \(\mathrm{d}_{\mathrm{xy}}, \mathrm{d}_{\mathrm{yz}}\) and \(\mathrm{d}_{\mathrm{zx}}\).
162454
Which of the following carbonyls will have the strongest \(\mathrm{C}-\mathrm{O}\) bond :
1 \(\mathrm{Mn}(\mathrm{CO})_6^{+}\)
2 \(\mathrm{Cr}(\mathrm{CO})_6\)
3 \(\mathrm{V}(\mathrm{CO})_6^{-}\)
4 \(\mathrm{Fe}(\mathrm{CO})_5\)
Explanation:
The presence of +ve charge on the metal carbonyl would resist the flow of the metal electron charge to \(\pi^*\) orbitals of \(\mathrm{CO}\). This could increase the \(\mathrm{CO}\) bond order and hence absorb at a higher frequency compared to its absorption in a neutral metal carbonyl.
NCERT-XII-136
9 RBTS PAPER
162455
Amongest the following ions which one has the highest magnetic moment value :
More the number of unpaired electron, higher in the magnetic moment.
\(\mathrm{Fe}^{+2}=3 \mathrm{~d}^6 4 \mathrm{~s}^0\) Configuration
No. of unpaired electrons \(=4\)
NCERT-XII-130
9 RBTS PAPER
162456
Which one of the following coordination compounds is used to inhibit the growth of tumours:
1 Trans - \(\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_3 \mathrm{Cl}_3\right]\)
4 Trans - \(\left[\mathrm{PtCl}_2\left(\mathrm{NH}_3\right)_2\right]\)
Explanation:
Cis - \(\left\) is used to inhibit the growth of tumours.
PYQ
9 RBTS PAPER
162457
The degenerate orbitals of \(\left[\mathrm{Cr}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{3+}\) are :
1 \(d_{y z}, d_{z^2}, d_{x^2-y^2}\)
2 \(d_{z^2}, d_{x z}, d_{y z}\)
3 \(d_{x y}, d_{y z}, d_{z x}\)
4 \(d_{x^2-y^2}, d_{x y}, d_{z^2}\)
Explanation:
Degenerate orbitals of \(\left^{+3}\)
Hence according to the options given degenerate orbitals are \(\mathrm{d}_{\mathrm{xy}}, \mathrm{d}_{\mathrm{yz}}\) and \(\mathrm{d}_{\mathrm{zx}}\).
162454
Which of the following carbonyls will have the strongest \(\mathrm{C}-\mathrm{O}\) bond :
1 \(\mathrm{Mn}(\mathrm{CO})_6^{+}\)
2 \(\mathrm{Cr}(\mathrm{CO})_6\)
3 \(\mathrm{V}(\mathrm{CO})_6^{-}\)
4 \(\mathrm{Fe}(\mathrm{CO})_5\)
Explanation:
The presence of +ve charge on the metal carbonyl would resist the flow of the metal electron charge to \(\pi^*\) orbitals of \(\mathrm{CO}\). This could increase the \(\mathrm{CO}\) bond order and hence absorb at a higher frequency compared to its absorption in a neutral metal carbonyl.
NCERT-XII-136
9 RBTS PAPER
162455
Amongest the following ions which one has the highest magnetic moment value :
More the number of unpaired electron, higher in the magnetic moment.
\(\mathrm{Fe}^{+2}=3 \mathrm{~d}^6 4 \mathrm{~s}^0\) Configuration
No. of unpaired electrons \(=4\)
NCERT-XII-130
9 RBTS PAPER
162456
Which one of the following coordination compounds is used to inhibit the growth of tumours:
1 Trans - \(\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_3 \mathrm{Cl}_3\right]\)
4 Trans - \(\left[\mathrm{PtCl}_2\left(\mathrm{NH}_3\right)_2\right]\)
Explanation:
Cis - \(\left\) is used to inhibit the growth of tumours.
PYQ
9 RBTS PAPER
162457
The degenerate orbitals of \(\left[\mathrm{Cr}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{3+}\) are :
1 \(d_{y z}, d_{z^2}, d_{x^2-y^2}\)
2 \(d_{z^2}, d_{x z}, d_{y z}\)
3 \(d_{x y}, d_{y z}, d_{z x}\)
4 \(d_{x^2-y^2}, d_{x y}, d_{z^2}\)
Explanation:
Degenerate orbitals of \(\left^{+3}\)
Hence according to the options given degenerate orbitals are \(\mathrm{d}_{\mathrm{xy}}, \mathrm{d}_{\mathrm{yz}}\) and \(\mathrm{d}_{\mathrm{zx}}\).
162454
Which of the following carbonyls will have the strongest \(\mathrm{C}-\mathrm{O}\) bond :
1 \(\mathrm{Mn}(\mathrm{CO})_6^{+}\)
2 \(\mathrm{Cr}(\mathrm{CO})_6\)
3 \(\mathrm{V}(\mathrm{CO})_6^{-}\)
4 \(\mathrm{Fe}(\mathrm{CO})_5\)
Explanation:
The presence of +ve charge on the metal carbonyl would resist the flow of the metal electron charge to \(\pi^*\) orbitals of \(\mathrm{CO}\). This could increase the \(\mathrm{CO}\) bond order and hence absorb at a higher frequency compared to its absorption in a neutral metal carbonyl.
NCERT-XII-136
9 RBTS PAPER
162455
Amongest the following ions which one has the highest magnetic moment value :
More the number of unpaired electron, higher in the magnetic moment.
\(\mathrm{Fe}^{+2}=3 \mathrm{~d}^6 4 \mathrm{~s}^0\) Configuration
No. of unpaired electrons \(=4\)
NCERT-XII-130
9 RBTS PAPER
162456
Which one of the following coordination compounds is used to inhibit the growth of tumours:
1 Trans - \(\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_3 \mathrm{Cl}_3\right]\)
4 Trans - \(\left[\mathrm{PtCl}_2\left(\mathrm{NH}_3\right)_2\right]\)
Explanation:
Cis - \(\left\) is used to inhibit the growth of tumours.
PYQ
9 RBTS PAPER
162457
The degenerate orbitals of \(\left[\mathrm{Cr}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{3+}\) are :
1 \(d_{y z}, d_{z^2}, d_{x^2-y^2}\)
2 \(d_{z^2}, d_{x z}, d_{y z}\)
3 \(d_{x y}, d_{y z}, d_{z x}\)
4 \(d_{x^2-y^2}, d_{x y}, d_{z^2}\)
Explanation:
Degenerate orbitals of \(\left^{+3}\)
Hence according to the options given degenerate orbitals are \(\mathrm{d}_{\mathrm{xy}}, \mathrm{d}_{\mathrm{yz}}\) and \(\mathrm{d}_{\mathrm{zx}}\).
