QBManager

COORDINATION COMPOUNDS

274390 Cold ferrous sulphate solution on absorption of NO develops brown colour due to the formation of

1 paramagnetic

[Fe {(H_{2} O)}_{5} (NO)] {SO}_{4}

2 diamagnetic

[Fe {(H_{2} O)}_{5} (N_{3})] {SO}_{4}

3 paramagnetic

[Fe {(H_{2} O)}_{5} ({NO}_{3})] {[{SO}_{4}]}_{2}

4 diamagnetic

[Fe {(H_{2} O)}_{4} ({SO}_{4})] {NO}_{3}

Explanation:

(A) : Ferrous sulphate is a type of iron compound its formula is ${FeSO}_{4}$ . When cold ferrous sulphate absorb $NO$ , it develops a brown colour. This occurs due to the formation of paramagnetic $[Fe {(H_{2} O)}_{5} (NO)] {SO}_{4}$ . It is a paramagnetic.

WB-JEE-2015

COORDINATION COMPOUNDS

274398 A compound absorbs light in the wavelength region 490-500 $nm$ . Its complementary colour is

1 Red

2 Blue

3 Orange

4 Blue-green

Explanation:

(A) : When a compound absorbs a specific wavelength from the visible light of any colour then the perceived colour of light is the colour complementary to it. The wavelength region $490 - 500 nm$ corresponds to blue-green colour. Its complementary colour is red.

AP EAMCET (Engg.) 2013

COORDINATION COMPOUNDS

274402 In which of the following ions, d-d transition is not possible?

1

{Ti}^{4 +}

2

{Cr}^{3 +}

3

{Mn}^{2 +}

4

{Cu}^{2 +}

Explanation:

(A) : ${Mn}^{2 +}, {Cr}^{3 +}$ and ${Cu}^{2 +}$ having the electron in outer $d$ -orbital which is available for $d$ -d transition but in the case of ${Ti}^{4 +}$ , there are no electron present in outer orbital.

GUJCET-2007

COORDINATION COMPOUNDS

274404 In the change ${[Cu (H_{2} O_{6})]}^{2 +} \overset{HCl}{⟶}$
${[CuCl {(H_{2} O)}_{5}]}^{+}$ , the colour changes from

1 blue to green

2 blue to pink

3 pink to green

4 pink to blue

Explanation:

(B) : In the change ${[Cu (H_{2} O_{6})]}^{2 +} \overset{HCl}{⟶}$ ${[CuCl {(H_{2} O)}_{5}]}^{+}$ , the colour changes from blue to pink.

AIIMS-2007

COORDINATION COMPOUNDS

274390 Cold ferrous sulphate solution on absorption of NO develops brown colour due to the formation of

1 paramagnetic

[Fe {(H_{2} O)}_{5} (NO)] {SO}_{4}

2 diamagnetic

[Fe {(H_{2} O)}_{5} (N_{3})] {SO}_{4}

3 paramagnetic

[Fe {(H_{2} O)}_{5} ({NO}_{3})] {[{SO}_{4}]}_{2}

4 diamagnetic

[Fe {(H_{2} O)}_{4} ({SO}_{4})] {NO}_{3}

Explanation:

(A) : Ferrous sulphate is a type of iron compound its formula is ${FeSO}_{4}$ . When cold ferrous sulphate absorb $NO$ , it develops a brown colour. This occurs due to the formation of paramagnetic $[Fe {(H_{2} O)}_{5} (NO)] {SO}_{4}$ . It is a paramagnetic.

WB-JEE-2015

COORDINATION COMPOUNDS

274398 A compound absorbs light in the wavelength region 490-500 $nm$ . Its complementary colour is

1 Red

2 Blue

3 Orange

4 Blue-green

Explanation:

(A) : When a compound absorbs a specific wavelength from the visible light of any colour then the perceived colour of light is the colour complementary to it. The wavelength region $490 - 500 nm$ corresponds to blue-green colour. Its complementary colour is red.

AP EAMCET (Engg.) 2013

COORDINATION COMPOUNDS

274402 In which of the following ions, d-d transition is not possible?

1

{Ti}^{4 +}

2

{Cr}^{3 +}

3

{Mn}^{2 +}

4

{Cu}^{2 +}

Explanation:

(A) : ${Mn}^{2 +}, {Cr}^{3 +}$ and ${Cu}^{2 +}$ having the electron in outer $d$ -orbital which is available for $d$ -d transition but in the case of ${Ti}^{4 +}$ , there are no electron present in outer orbital.

GUJCET-2007

COORDINATION COMPOUNDS

274404 In the change ${[Cu (H_{2} O_{6})]}^{2 +} \overset{HCl}{⟶}$
${[CuCl {(H_{2} O)}_{5}]}^{+}$ , the colour changes from

1 blue to green

2 blue to pink

3 pink to green

4 pink to blue

Explanation:

(B) : In the change ${[Cu (H_{2} O_{6})]}^{2 +} \overset{HCl}{⟶}$ ${[CuCl {(H_{2} O)}_{5}]}^{+}$ , the colour changes from blue to pink.

AIIMS-2007

COORDINATION COMPOUNDS

274390 Cold ferrous sulphate solution on absorption of NO develops brown colour due to the formation of

1 paramagnetic

[Fe {(H_{2} O)}_{5} (NO)] {SO}_{4}

2 diamagnetic

[Fe {(H_{2} O)}_{5} (N_{3})] {SO}_{4}

3 paramagnetic

[Fe {(H_{2} O)}_{5} ({NO}_{3})] {[{SO}_{4}]}_{2}

4 diamagnetic

[Fe {(H_{2} O)}_{4} ({SO}_{4})] {NO}_{3}

Explanation:

(A) : Ferrous sulphate is a type of iron compound its formula is ${FeSO}_{4}$ . When cold ferrous sulphate absorb $NO$ , it develops a brown colour. This occurs due to the formation of paramagnetic $[Fe {(H_{2} O)}_{5} (NO)] {SO}_{4}$ . It is a paramagnetic.

WB-JEE-2015

COORDINATION COMPOUNDS

274398 A compound absorbs light in the wavelength region 490-500 $nm$ . Its complementary colour is

1 Red

2 Blue

3 Orange

4 Blue-green

Explanation:

(A) : When a compound absorbs a specific wavelength from the visible light of any colour then the perceived colour of light is the colour complementary to it. The wavelength region $490 - 500 nm$ corresponds to blue-green colour. Its complementary colour is red.

AP EAMCET (Engg.) 2013

COORDINATION COMPOUNDS

274402 In which of the following ions, d-d transition is not possible?

1

{Ti}^{4 +}

2

{Cr}^{3 +}

3

{Mn}^{2 +}

4

{Cu}^{2 +}

Explanation:

(A) : ${Mn}^{2 +}, {Cr}^{3 +}$ and ${Cu}^{2 +}$ having the electron in outer $d$ -orbital which is available for $d$ -d transition but in the case of ${Ti}^{4 +}$ , there are no electron present in outer orbital.

GUJCET-2007

COORDINATION COMPOUNDS

274404 In the change ${[Cu (H_{2} O_{6})]}^{2 +} \overset{HCl}{⟶}$
${[CuCl {(H_{2} O)}_{5}]}^{+}$ , the colour changes from

1 blue to green

2 blue to pink

3 pink to green

4 pink to blue

Explanation:

(B) : In the change ${[Cu (H_{2} O_{6})]}^{2 +} \overset{HCl}{⟶}$ ${[CuCl {(H_{2} O)}_{5}]}^{+}$ , the colour changes from blue to pink.

AIIMS-2007

COORDINATION COMPOUNDS

274390 Cold ferrous sulphate solution on absorption of NO develops brown colour due to the formation of

1 paramagnetic

[Fe {(H_{2} O)}_{5} (NO)] {SO}_{4}

2 diamagnetic

[Fe {(H_{2} O)}_{5} (N_{3})] {SO}_{4}

3 paramagnetic

[Fe {(H_{2} O)}_{5} ({NO}_{3})] {[{SO}_{4}]}_{2}

4 diamagnetic

[Fe {(H_{2} O)}_{4} ({SO}_{4})] {NO}_{3}

Explanation:

(A) : Ferrous sulphate is a type of iron compound its formula is ${FeSO}_{4}$ . When cold ferrous sulphate absorb $NO$ , it develops a brown colour. This occurs due to the formation of paramagnetic $[Fe {(H_{2} O)}_{5} (NO)] {SO}_{4}$ . It is a paramagnetic.

WB-JEE-2015

COORDINATION COMPOUNDS

274398 A compound absorbs light in the wavelength region 490-500 $nm$ . Its complementary colour is

1 Red

2 Blue

3 Orange

4 Blue-green

Explanation:

(A) : When a compound absorbs a specific wavelength from the visible light of any colour then the perceived colour of light is the colour complementary to it. The wavelength region $490 - 500 nm$ corresponds to blue-green colour. Its complementary colour is red.

AP EAMCET (Engg.) 2013

COORDINATION COMPOUNDS

274402 In which of the following ions, d-d transition is not possible?

1

{Ti}^{4 +}

2

{Cr}^{3 +}

3

{Mn}^{2 +}

4

{Cu}^{2 +}

Explanation:

(A) : ${Mn}^{2 +}, {Cr}^{3 +}$ and ${Cu}^{2 +}$ having the electron in outer $d$ -orbital which is available for $d$ -d transition but in the case of ${Ti}^{4 +}$ , there are no electron present in outer orbital.

GUJCET-2007

COORDINATION COMPOUNDS

274404 In the change ${[Cu (H_{2} O_{6})]}^{2 +} \overset{HCl}{⟶}$
${[CuCl {(H_{2} O)}_{5}]}^{+}$ , the colour changes from

1 blue to green

2 blue to pink

3 pink to green

4 pink to blue

Explanation:

(B) : In the change ${[Cu (H_{2} O_{6})]}^{2 +} \overset{HCl}{⟶}$ ${[CuCl {(H_{2} O)}_{5}]}^{+}$ , the colour changes from blue to pink.

AIIMS-2007

Explanation:

Explanation:

Explanation:

Explanation:

Question Bank Series

Explanation:

Explanation:

Explanation:

Explanation:

Explanation:

Explanation:

Explanation:

Explanation:

Explanation:

Explanation:

Explanation:

Explanation:

Question Bank Series