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Paramagnetism is a property due to the p...

Paramagnetism is a property due to the presence of unpaired electrons. In case of transition metals, as they contain unpaired contain unpaired electrons in the `(n-1)` d orbitals , most of the transition metal ions and their compounds are paramagnetic . Paramagnetism increases with increases in number of unpaired electrons. Magnetic moment is calculated from spin only formula
`mu=sqrt(n(n+2)) B.M n="number of unpaired electrons"`
Similarly the colour of the compounds of transition metals may be attributed to the presence of incomplete `(n-1)` d sub-shell. When an electron from a lower energy of d-orbitals is excited to a higher energy d-orbital, the energy of excitation corresponds to the frequency of light absorbed. This frequency generally lies in the visible region. The colour observed corresponds to complementary colour of the light observed. The frequency of the light absorbed is determined by the nature of the ligand.
Titanium shows magnetic moments of `1.73 BM` in its compound. What is the oxidation state of titanium in the compound?

A

`+1`

B

`+4`

C

`+3`

D

`+2`

Text Solution

Verified by Experts

The correct Answer is:
C
no. of unpaired electron`=1`
`Ti=(Ar)4s^(2)3d^(2)`
`Ti^(+3)` having `1` unpaired electron.
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Paramagnetism is a property due to the presence of unpaired electrons. In case of transition metals, as they contain unpaired contain unpaired electrons in the (n-1) d orbitals , most of the transition metal ions and their compounds are paramagnetic . Paramagnetism increases with increases in number of unpaired electrons. Magnetic moment is calculated from 'spin only formula' Vz mu=sqrt(n(n+2)) B.M n="number of unpaired electrons" Similarly the colour of the compounds of transition metals may be attributed to the presence of incomplete (n-1) d sub-shell. When an electron from a lower energy of d-orbitals is excited to a higher energy d-orbital, the energy of excitation corresponds to the frequency of light absorbed. This frequency generally lies in the visible region. The colour observed corresponds to complementry colour of the light obserbed. The frequency of the light absorbed is determined by the nature of the ligand. The colourless species is:

Paramagnetism is a property due to the presence of unpaired electrons. In case of transition metals, as they contain unpaired contain unpaired electrons in the (n-1) d orbitals , most of the transition metal ions and their compounds are paramagnetic . Paramagnetism increases with increases in number of unpaired electrons. Magnetic moment is calculated from 'spin only formula' Vz mu=sqrt(n(n+2)) B.M n="number of unpaired electrons" Similarly the colour of the compounds of transition metals may be attributed to the presence of incomplete (n-1) d sub-shell. When an electron from a lower energy of d-orbitals is excited to a higher energy d-orbital, the energy of excitation corresponds to the frequency of light absorbed. This frequency generally lies in the visible region. The colour observed corresponds to complementry colour of the light obserbed. The frequency of the light absorbed is determined by the nature of the ligand. Identify the correct statement.

Paramagnetism is a property due to the presence of unpaired electrons. In case of transition metals, as they contain unpaired electrons in the (n-1)d orbitals, most of the transition metal ions and their compounds are paramagnetic. Paramagnetism increases with increases in number of unpaired electrons. Magnetic moment is calculated from '"Spin only formula"' viz. mu = sqrt(n(n+2)) B.M. n = no . of unpaired electrons Similarly the colour of the compounds of transition metals may be attributed to the presence of incomplete (n-1)d subshell. When an electron from a lower energy of d-orbital is excited to a higher energy d-orbital, the energy of excitation corresponding to the frequency of light absorbed. This frequency generally lies in the visible region. The colour observed correponds to complementary colour of the light absorbed. The frequency of the light absorbed is determined by the nature of the ligand. Titanium shows magnetic moment of 1.7 BM in its compound. What is the oxidation state of titanium in the compound?

Paramagnetism is a property due to the presence of unpaired electrons. In case of transition metals, as they contain unpaired contain unpaired electrons in the (n-1) d orbitals , most of the transition metal ions and their compounds are paramagnetic . Paramagnetism increases with increases in number of unpaired electrons. Magnetic moment is calculated from spin only formula' Vz mu=sqrt(n(n+2)) B.M n="number of unpaired electrons" Similarly the colour of the compounds of transition metals may be attributed to the presence of incomplete (n-1) d sub-shell. When an electron from a lower energy of d-orbitals is excited to a higher energy d-orbital, the energy of excitation corresponds to the frequency of light absorbed. This frequency generally lies in the visible region. The colour observed corresponds to complementry colour of the light obserbed. The frequency of the light absorbed is determined by the nature of the ligand. Which of the following pair of Compounds is expected to exhibit same colour in aqueous solution

Paramagnetism is a property due to the presence of unpaired electrons. In case of transition metals, as they contain unpaired electrons in the (n-1)d orbitals, most of the transition metal ions and their compounds are paramagnetic. Paramagnetism increases with increases in number of unpaired electrons. Magnetic moment is calculated from '"Spin only formula"' viz. mu = sqrt(n(n+2)) B.M. n = no . of unpaired electrons Similarly the colour of the compounds of transition metals may be attributed to the presence of incomplete (n-1)d subshell. When an electron from a lower energy of d-orbital is excited to a higher energy d-orbital, the energy of excitation corresponding to the frequency of light absorbed. This frequency generally lies in the visible region. The colour observed correponds to complementary colour of the light absorbed. The frequency of the light absorbed is determined by the nature of the ligand. Which of the following pair of compounds is expected to exhibit same colour in aqueous solution.

Number of unpaired electrons in Fe^(2+) ion is

The higher number of unpaired electrons are in

Number of unpaired electron is maximum in

The number of unpaired electrons in ferrous ion is

BANSAL-D AND F BLOCK ELEMENTS-Exercise-1 (Single Correct Choice Type)
  1. The atomic numbers of vanadium (V). Chromium (Cr), managanese (Mn) and...

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  2. Transition metals ions form interstial compounds because-

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  3. Paramagnetism is a property due to the presence of unpaired electrons....

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  4. The ion pair of the following in which both the ions have unpaired ele...

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  5. What happen when a solution of potassium chromate is treated with an e...

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  6. Transition elements act as catalyst because-

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  7. The radius of La^(+) (at no 57) is 1.06Å. What may be the radius of Lu...

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  8. Calomel is the name of

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  9. Cerium (Z= 58) is an important nember of the lanthanoids . Which of th...

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  10. Excess of KI reacts with CuSO(4) solution and Na(2)SO(3) solution is a...

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  11. Formula of chromyl chloride is-

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  12. Calomel (H(2)Cl(2)) on reaction with ammonium hydroxide gives

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  13. The reaction, 2Cu^(+)toCu+Cu^(2+) is called-

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  14. The lanthanide contraction is responsible for the fact that

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  15. Amongst [TiE(6)]^(2-), [CoF(6)]^(3-), Cu(2)Cl(2) and [NiCl(4)]^(2-) [A...

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  16. Lanthanoid contraction is caused due to:

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  17. CrO(3) is a//an"….."

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  18. Which of the following is expected to have lowest magnetic moment-

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  19. Identify the incorrect statement among the following.

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  20. Which of the following ion has the maximum magnetic moment?

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