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CHXII08:THE D- & F-BLOCK ELEMENTS

321470 The ion having maximum magnetic moment is

1

{Co}^{+ 3}

2

{Cr}^{+ 3}

3

{Ni}^{+ 2}

4

{Cu}^{+ 1}

CHXII08:THE D- & F-BLOCK ELEMENTS

321471 Titanium shows magnetic moment of 1.73 B.M.
in its compound. What is the oxidation number
of $Ti$ in the compound?

1 +1

2 +4

3 +3

4 +2

Explanation:

Magnetic moment $μ = \sqrt{n (n + 2)} B M$
$1 .73 = \sqrt{n (n + 2)} ∴ n = 1,$ it has one unpaired electrons hence electronic configuration is $[A r] 3 d^{1}$ and electronic configuration for $Z = 22 i s [A r] 3 d^{2} 5 s^{2}$ . Hence charge on Ti is +3 .

CHXII08:THE D- & F-BLOCK ELEMENTS

321472 Which one of the following has a magnetic moment of 1.75 B.M?

1

T i^{3 +}

2

V^{3 +}

3

C r^{3 +}

4

{Fe}^{3 +}

Explanation:

Magnetic moment ( $μ$ ) $= \sqrt{n (n + 2)}$ B.M.
Where $n =$ number of unpaired electrons.
supporting img

KCET - 2012

CHXII08:THE D- & F-BLOCK ELEMENTS

321473 Which of the following pair of transition metal ions have the same calculated values of magnetic moment?

1

{Ti}^{+ 2}

and

V^{+ 2}

2

{Fe}^{+ 2}

and

{Cu}^{+ 2}

3

{Cr}^{+ 3}

and

{Fe}^{+ 2}

4

N i^{+ 2}

and

T i^{+ 2}

Explanation:

Magnetic moment value of ions depends upon the number of unpaired electrons.
Number of unpaired electrons in ${Ni}^{+ 2}$ and ${Ti}^{2 +}$ is 2 . So, the magnetic moment of these ions is also same.

CHXII08:THE D- & F-BLOCK ELEMENTS

321470 The ion having maximum magnetic moment is

1

{Co}^{+ 3}

2

{Cr}^{+ 3}

3

{Ni}^{+ 2}

4

{Cu}^{+ 1}

CHXII08:THE D- & F-BLOCK ELEMENTS

321471 Titanium shows magnetic moment of 1.73 B.M.
in its compound. What is the oxidation number
of $Ti$ in the compound?

1 +1

2 +4

3 +3

4 +2

Explanation:

Magnetic moment $μ = \sqrt{n (n + 2)} B M$
$1 .73 = \sqrt{n (n + 2)} ∴ n = 1,$ it has one unpaired electrons hence electronic configuration is $[A r] 3 d^{1}$ and electronic configuration for $Z = 22 i s [A r] 3 d^{2} 5 s^{2}$ . Hence charge on Ti is +3 .

CHXII08:THE D- & F-BLOCK ELEMENTS

321472 Which one of the following has a magnetic moment of 1.75 B.M?

1

T i^{3 +}

2

V^{3 +}

3

C r^{3 +}

4

{Fe}^{3 +}

Explanation:

Magnetic moment ( $μ$ ) $= \sqrt{n (n + 2)}$ B.M.
Where $n =$ number of unpaired electrons.
supporting img

KCET - 2012

CHXII08:THE D- & F-BLOCK ELEMENTS

321473 Which of the following pair of transition metal ions have the same calculated values of magnetic moment?

1

{Ti}^{+ 2}

and

V^{+ 2}

2

{Fe}^{+ 2}

and

{Cu}^{+ 2}

3

{Cr}^{+ 3}

and

{Fe}^{+ 2}

4

N i^{+ 2}

and

T i^{+ 2}

Explanation:

Magnetic moment value of ions depends upon the number of unpaired electrons.
Number of unpaired electrons in ${Ni}^{+ 2}$ and ${Ti}^{2 +}$ is 2 . So, the magnetic moment of these ions is also same.

CHXII08:THE D- & F-BLOCK ELEMENTS

321470 The ion having maximum magnetic moment is

1

{Co}^{+ 3}

2

{Cr}^{+ 3}

3

{Ni}^{+ 2}

4

{Cu}^{+ 1}

CHXII08:THE D- & F-BLOCK ELEMENTS

321471 Titanium shows magnetic moment of 1.73 B.M.
in its compound. What is the oxidation number
of $Ti$ in the compound?

1 +1

2 +4

3 +3

4 +2

Explanation:

Magnetic moment $μ = \sqrt{n (n + 2)} B M$
$1 .73 = \sqrt{n (n + 2)} ∴ n = 1,$ it has one unpaired electrons hence electronic configuration is $[A r] 3 d^{1}$ and electronic configuration for $Z = 22 i s [A r] 3 d^{2} 5 s^{2}$ . Hence charge on Ti is +3 .

CHXII08:THE D- & F-BLOCK ELEMENTS

321472 Which one of the following has a magnetic moment of 1.75 B.M?

1

T i^{3 +}

2

V^{3 +}

3

C r^{3 +}

4

{Fe}^{3 +}

Explanation:

Magnetic moment ( $μ$ ) $= \sqrt{n (n + 2)}$ B.M.
Where $n =$ number of unpaired electrons.
supporting img

KCET - 2012

CHXII08:THE D- & F-BLOCK ELEMENTS

321473 Which of the following pair of transition metal ions have the same calculated values of magnetic moment?

1

{Ti}^{+ 2}

and

V^{+ 2}

2

{Fe}^{+ 2}

and

{Cu}^{+ 2}

3

{Cr}^{+ 3}

and

{Fe}^{+ 2}

4

N i^{+ 2}

and

T i^{+ 2}

Explanation:

Magnetic moment value of ions depends upon the number of unpaired electrons.
Number of unpaired electrons in ${Ni}^{+ 2}$ and ${Ti}^{2 +}$ is 2 . So, the magnetic moment of these ions is also same.

CHXII08:THE D- & F-BLOCK ELEMENTS

321470 The ion having maximum magnetic moment is

1

{Co}^{+ 3}

2

{Cr}^{+ 3}

3

{Ni}^{+ 2}

4

{Cu}^{+ 1}

CHXII08:THE D- & F-BLOCK ELEMENTS

321471 Titanium shows magnetic moment of 1.73 B.M.
in its compound. What is the oxidation number
of $Ti$ in the compound?

1 +1

2 +4

3 +3

4 +2

Explanation:

Magnetic moment $μ = \sqrt{n (n + 2)} B M$
$1 .73 = \sqrt{n (n + 2)} ∴ n = 1,$ it has one unpaired electrons hence electronic configuration is $[A r] 3 d^{1}$ and electronic configuration for $Z = 22 i s [A r] 3 d^{2} 5 s^{2}$ . Hence charge on Ti is +3 .

CHXII08:THE D- & F-BLOCK ELEMENTS

321472 Which one of the following has a magnetic moment of 1.75 B.M?

1

T i^{3 +}

2

V^{3 +}

3

C r^{3 +}

4

{Fe}^{3 +}

Explanation:

Magnetic moment ( $μ$ ) $= \sqrt{n (n + 2)}$ B.M.
Where $n =$ number of unpaired electrons.
supporting img

KCET - 2012

CHXII08:THE D- & F-BLOCK ELEMENTS

321473 Which of the following pair of transition metal ions have the same calculated values of magnetic moment?

1

{Ti}^{+ 2}

and

V^{+ 2}

2

{Fe}^{+ 2}

and

{Cu}^{+ 2}

3

{Cr}^{+ 3}

and

{Fe}^{+ 2}

4

N i^{+ 2}

and

T i^{+ 2}

Explanation:

Magnetic moment value of ions depends upon the number of unpaired electrons.
Number of unpaired electrons in ${Ni}^{+ 2}$ and ${Ti}^{2 +}$ is 2 . So, the magnetic moment of these ions is also same.