Statement I : Both and complexes are octahedral but differ in their magnetic behaviour. Statement II : is diamagnetic whereas is paramagnetic. [2024]

STUDY MATERIALS
COURSES
MORE
SUCCESS STORY
ADMISSION
STORE

Back

JEE ADVANCE

CLASS XI - XII
CRASH COURSE

CLASS XI - XII

CRASH COURSE

JEE MAIN

CLASS XI - XII
CRASH COURSE

CLASS XI - XII

CRASH COURSE

NEET

CLASS XI - XII
CRASH COURSE

CLASS XI - XII

CRASH COURSE

BITSAT

CLASS XI - XII

CLASS XI - XII

CBSE BOARD

CLASS IX

CLASS X

CLASS XI

CLASS XII

CLASS VI

CLASS VII

CLASS VIII

UP BOARD

CLASS IX
CLASS X
CLASS XI
CLASS XII

CLASS IX

CLASS X

CLASS XI

CLASS XII

CUET

CRASH COURSE

CRASH COURSE

Courses

CLASSROOM COURSES
ONLINE COURSES

ONLINE COURSES

Q.
Given below are two statements :

Statement I : Both ${[Co {({NH}_{3})}_{6}]}^{3 +}$ and ${[{CoF}_{6}]}^{3 -}$ complexes are octahedral but differ in their magnetic behaviour.

Statement II : ${[Co {({NH}_{3})}_{6}]}^{3 +}$ is diamagnetic whereas ${[{CoF}_{6}]}^{3 -}$ is paramagnetic.

In the light of the above statements, choose the correct answer from the options given below : [2024]

1 Both Statement I and Statement II are true.

2 Both Statement I and Statement II are false.

3 Statement I is true but Statement II is false.

4 Statement I is false but Statement II is true.

Ans.
(1)

In ${[Co {({NH}_{3})}_{6}]}^{3 +}$ :

Hybridisation – $d^{2} s p^{3}$

Structure – Octahedral

Nature – Diamagnetic

In ${[{CoF}_{6}]}^{3 -}$ :

Hybridisation – $s p^{3} d^{2}$

Structure – Octahedral

Nature – Paramagnetic

Solution

1 Both Statement I and Statement II are true.

2 Both Statement I and Statement II are false.

3 Statement I is true but Statement II is false.

4 Statement I is false but Statement II is true.

Ans.
(1)

In ${[Co {({NH}_{3})}_{6}]}^{3 +}$ :

Hybridisation – $d^{2} s p^{3}$

Structure – Octahedral

Nature – Diamagnetic

In ${[{CoF}_{6}]}^{3 -}$ :

Hybridisation – $s p^{3} d^{2}$

Structure – Octahedral

Nature – Paramagnetic

Want Us to Email you About Special Offers & Updates?

Solution

1 Both Statement I and Statement II are true.

2 Both Statement I and Statement II are false.

3 Statement I is true but Statement II is false.

4 Statement I is false but Statement II is true.

Ans. (1) In [Co(NH3)6]3+: Hybridisation – d2sp3 Structure – Octahedral Nature – Diamagnetic In [CoF6]3-: Hybridisation – sp3d2 Structure – Octahedral Nature – Paramagnetic

Want Us to Email you About Special Offers & Updates?

Ans.
(1)

In ${[Co {({NH}_{3})}_{6}]}^{3 +}$ :

Hybridisation – $d^{2} s p^{3}$

Structure – Octahedral

Nature – Diamagnetic

In ${[{CoF}_{6}]}^{3 -}$ :

Hybridisation – $s p^{3} d^{2}$

Structure – Octahedral

Nature – Paramagnetic