162449
The oxidation states of \(\mathrm{Co}\) and \(\mathrm{Cr}\) respectively in the following complex are :
\(\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]\left[\mathrm{Cr}\left(\mathrm{NH}_3\right)_2 \mathrm{Cl}_4\right]_3\)
1 \(+3,+4\)
2 \(+3,+2\)
3 \(+2,+3\)
4 \(+3,+3\)
Explanation:
NCERT-XII-122
9 RBTS PAPER
162419
Which of the following statement is correct :
1 \(\mathrm{La}(\mathrm{OH})_3\) is more basic than \(\mathrm{Lu}(\mathrm{OH})_3\)
2 In lanthanoid series, ionic radius of \(\mathrm{Ln}^{+3}\) ion increases with increasing atomic number
3 La is an elements of lanthanoid series
4 All of these
Explanation:
\(\mathrm{La}(\mathrm{OH})_3\) is more basic than \(\mathrm{Lu}(\mathrm{OH})_3\)
NCERT-XII-109
9 RBTS PAPER
162420
In \(\mathrm{Cr}_2 \mathrm{O}_7{ }^{2-}\)
1 \(4 \mathrm{Cr}-\mathrm{O}\) bonds are equivalent
2 \(6 \mathrm{Cr}-\mathrm{O}\) bonds are equivalent
3 All \(\mathrm{Cr}-\mathrm{O}\) bonds are equivalent
4 All of these
Explanation:
The dicromate ion consist of two tetra hedral units in which \(6 \mathrm{Cr}-0\) bonds are equvalent in nature.
NCERT-XII-106
9 RBTS PAPER
162421
Most of the transition metal compounds are coloured generally due to :
1 d-d transition and charge transfer
2 small size
3 variable oxidation state
4 None of these
Explanation:
\(\mathrm{d}\)-d-transition is main cause for showing colour nature.
NCERT-XII-103
9 RBTS PAPER
162422
Which of the two have almost similar size :
1 \({ }_{22} \mathrm{Ti}\) and \({ }_{40} \mathrm{Zr}\)
2 \({ }_{25} \mathrm{Mn}\) and \({ }_{30} \mathrm{Zn}\)
3 \({ }_{39} \mathrm{Y}\) and \({ }_{57} \mathrm{La}\)
4 \({ }_{20} \mathrm{Ca}\) and \({ }_{31} \mathrm{Ir}\)
162449
The oxidation states of \(\mathrm{Co}\) and \(\mathrm{Cr}\) respectively in the following complex are :
\(\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]\left[\mathrm{Cr}\left(\mathrm{NH}_3\right)_2 \mathrm{Cl}_4\right]_3\)
1 \(+3,+4\)
2 \(+3,+2\)
3 \(+2,+3\)
4 \(+3,+3\)
Explanation:
NCERT-XII-122
9 RBTS PAPER
162419
Which of the following statement is correct :
1 \(\mathrm{La}(\mathrm{OH})_3\) is more basic than \(\mathrm{Lu}(\mathrm{OH})_3\)
2 In lanthanoid series, ionic radius of \(\mathrm{Ln}^{+3}\) ion increases with increasing atomic number
3 La is an elements of lanthanoid series
4 All of these
Explanation:
\(\mathrm{La}(\mathrm{OH})_3\) is more basic than \(\mathrm{Lu}(\mathrm{OH})_3\)
NCERT-XII-109
9 RBTS PAPER
162420
In \(\mathrm{Cr}_2 \mathrm{O}_7{ }^{2-}\)
1 \(4 \mathrm{Cr}-\mathrm{O}\) bonds are equivalent
2 \(6 \mathrm{Cr}-\mathrm{O}\) bonds are equivalent
3 All \(\mathrm{Cr}-\mathrm{O}\) bonds are equivalent
4 All of these
Explanation:
The dicromate ion consist of two tetra hedral units in which \(6 \mathrm{Cr}-0\) bonds are equvalent in nature.
NCERT-XII-106
9 RBTS PAPER
162421
Most of the transition metal compounds are coloured generally due to :
1 d-d transition and charge transfer
2 small size
3 variable oxidation state
4 None of these
Explanation:
\(\mathrm{d}\)-d-transition is main cause for showing colour nature.
NCERT-XII-103
9 RBTS PAPER
162422
Which of the two have almost similar size :
1 \({ }_{22} \mathrm{Ti}\) and \({ }_{40} \mathrm{Zr}\)
2 \({ }_{25} \mathrm{Mn}\) and \({ }_{30} \mathrm{Zn}\)
3 \({ }_{39} \mathrm{Y}\) and \({ }_{57} \mathrm{La}\)
4 \({ }_{20} \mathrm{Ca}\) and \({ }_{31} \mathrm{Ir}\)
162449
The oxidation states of \(\mathrm{Co}\) and \(\mathrm{Cr}\) respectively in the following complex are :
\(\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]\left[\mathrm{Cr}\left(\mathrm{NH}_3\right)_2 \mathrm{Cl}_4\right]_3\)
1 \(+3,+4\)
2 \(+3,+2\)
3 \(+2,+3\)
4 \(+3,+3\)
Explanation:
NCERT-XII-122
9 RBTS PAPER
162419
Which of the following statement is correct :
1 \(\mathrm{La}(\mathrm{OH})_3\) is more basic than \(\mathrm{Lu}(\mathrm{OH})_3\)
2 In lanthanoid series, ionic radius of \(\mathrm{Ln}^{+3}\) ion increases with increasing atomic number
3 La is an elements of lanthanoid series
4 All of these
Explanation:
\(\mathrm{La}(\mathrm{OH})_3\) is more basic than \(\mathrm{Lu}(\mathrm{OH})_3\)
NCERT-XII-109
9 RBTS PAPER
162420
In \(\mathrm{Cr}_2 \mathrm{O}_7{ }^{2-}\)
1 \(4 \mathrm{Cr}-\mathrm{O}\) bonds are equivalent
2 \(6 \mathrm{Cr}-\mathrm{O}\) bonds are equivalent
3 All \(\mathrm{Cr}-\mathrm{O}\) bonds are equivalent
4 All of these
Explanation:
The dicromate ion consist of two tetra hedral units in which \(6 \mathrm{Cr}-0\) bonds are equvalent in nature.
NCERT-XII-106
9 RBTS PAPER
162421
Most of the transition metal compounds are coloured generally due to :
1 d-d transition and charge transfer
2 small size
3 variable oxidation state
4 None of these
Explanation:
\(\mathrm{d}\)-d-transition is main cause for showing colour nature.
NCERT-XII-103
9 RBTS PAPER
162422
Which of the two have almost similar size :
1 \({ }_{22} \mathrm{Ti}\) and \({ }_{40} \mathrm{Zr}\)
2 \({ }_{25} \mathrm{Mn}\) and \({ }_{30} \mathrm{Zn}\)
3 \({ }_{39} \mathrm{Y}\) and \({ }_{57} \mathrm{La}\)
4 \({ }_{20} \mathrm{Ca}\) and \({ }_{31} \mathrm{Ir}\)
NEET Test Series from KOTA - 10 Papers In MS WORD
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9 RBTS PAPER
162449
The oxidation states of \(\mathrm{Co}\) and \(\mathrm{Cr}\) respectively in the following complex are :
\(\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]\left[\mathrm{Cr}\left(\mathrm{NH}_3\right)_2 \mathrm{Cl}_4\right]_3\)
1 \(+3,+4\)
2 \(+3,+2\)
3 \(+2,+3\)
4 \(+3,+3\)
Explanation:
NCERT-XII-122
9 RBTS PAPER
162419
Which of the following statement is correct :
1 \(\mathrm{La}(\mathrm{OH})_3\) is more basic than \(\mathrm{Lu}(\mathrm{OH})_3\)
2 In lanthanoid series, ionic radius of \(\mathrm{Ln}^{+3}\) ion increases with increasing atomic number
3 La is an elements of lanthanoid series
4 All of these
Explanation:
\(\mathrm{La}(\mathrm{OH})_3\) is more basic than \(\mathrm{Lu}(\mathrm{OH})_3\)
NCERT-XII-109
9 RBTS PAPER
162420
In \(\mathrm{Cr}_2 \mathrm{O}_7{ }^{2-}\)
1 \(4 \mathrm{Cr}-\mathrm{O}\) bonds are equivalent
2 \(6 \mathrm{Cr}-\mathrm{O}\) bonds are equivalent
3 All \(\mathrm{Cr}-\mathrm{O}\) bonds are equivalent
4 All of these
Explanation:
The dicromate ion consist of two tetra hedral units in which \(6 \mathrm{Cr}-0\) bonds are equvalent in nature.
NCERT-XII-106
9 RBTS PAPER
162421
Most of the transition metal compounds are coloured generally due to :
1 d-d transition and charge transfer
2 small size
3 variable oxidation state
4 None of these
Explanation:
\(\mathrm{d}\)-d-transition is main cause for showing colour nature.
NCERT-XII-103
9 RBTS PAPER
162422
Which of the two have almost similar size :
1 \({ }_{22} \mathrm{Ti}\) and \({ }_{40} \mathrm{Zr}\)
2 \({ }_{25} \mathrm{Mn}\) and \({ }_{30} \mathrm{Zn}\)
3 \({ }_{39} \mathrm{Y}\) and \({ }_{57} \mathrm{La}\)
4 \({ }_{20} \mathrm{Ca}\) and \({ }_{31} \mathrm{Ir}\)
162449
The oxidation states of \(\mathrm{Co}\) and \(\mathrm{Cr}\) respectively in the following complex are :
\(\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]\left[\mathrm{Cr}\left(\mathrm{NH}_3\right)_2 \mathrm{Cl}_4\right]_3\)
1 \(+3,+4\)
2 \(+3,+2\)
3 \(+2,+3\)
4 \(+3,+3\)
Explanation:
NCERT-XII-122
9 RBTS PAPER
162419
Which of the following statement is correct :
1 \(\mathrm{La}(\mathrm{OH})_3\) is more basic than \(\mathrm{Lu}(\mathrm{OH})_3\)
2 In lanthanoid series, ionic radius of \(\mathrm{Ln}^{+3}\) ion increases with increasing atomic number
3 La is an elements of lanthanoid series
4 All of these
Explanation:
\(\mathrm{La}(\mathrm{OH})_3\) is more basic than \(\mathrm{Lu}(\mathrm{OH})_3\)
NCERT-XII-109
9 RBTS PAPER
162420
In \(\mathrm{Cr}_2 \mathrm{O}_7{ }^{2-}\)
1 \(4 \mathrm{Cr}-\mathrm{O}\) bonds are equivalent
2 \(6 \mathrm{Cr}-\mathrm{O}\) bonds are equivalent
3 All \(\mathrm{Cr}-\mathrm{O}\) bonds are equivalent
4 All of these
Explanation:
The dicromate ion consist of two tetra hedral units in which \(6 \mathrm{Cr}-0\) bonds are equvalent in nature.
NCERT-XII-106
9 RBTS PAPER
162421
Most of the transition metal compounds are coloured generally due to :
1 d-d transition and charge transfer
2 small size
3 variable oxidation state
4 None of these
Explanation:
\(\mathrm{d}\)-d-transition is main cause for showing colour nature.
NCERT-XII-103
9 RBTS PAPER
162422
Which of the two have almost similar size :
1 \({ }_{22} \mathrm{Ti}\) and \({ }_{40} \mathrm{Zr}\)
2 \({ }_{25} \mathrm{Mn}\) and \({ }_{30} \mathrm{Zn}\)
3 \({ }_{39} \mathrm{Y}\) and \({ }_{57} \mathrm{La}\)
4 \({ }_{20} \mathrm{Ca}\) and \({ }_{31} \mathrm{Ir}\)