Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • School
  • Give reasons for the following : (a) Transition metals show variable oxidation states. (b) Eo value for (Zn2+/Zn) is negative while that of (Cu2+/Cu) is positive. (c

Give reasons for the following :

(a) Transition metals show variable oxidation states.
(b) Eo value for (Zn2+/Zn) is negative while that of (Cu2+/Cu) is positive.
(c) Higher oxidation state of Mn with fluorine is +4 whereas with oxygen is +7.

 

 

 

 
 
 
 
 

Answers (1)

best_answer

(a)    It is because their d-orbitals are incompletely filled.

(b)    Eo[Zn/Zn2+] is negative because of the conversion of Zn\rightarrow Zn^{2+} gives it a filled d5 configuration which is very stable whereas, conversion of Cu to Cu2+ does not give any extra stabity, hence it has positive Eo value.

(c)This is because in case of oxygen, Mn forms pπ-dπ multiple bonding using 2p orbitals of oxygen and 3d orbitals of Mn.
With F, Mn shows +4 because of the single bond formation caused by the unavailability of 2p orbitals in F for multiple bonding.

Posted by

Sumit Saini

View full answer

Crack CUET with india's "Best Teachers"

  • HD Video Lectures
  • Unlimited Mock Tests
  • Faculty Support
cuet_ads

Similar Questions

Trending Articles/News

anam-khan

CBSE Class 12 board exams 2025 to have 50% competency-based questions; no change in 10th
anam-khan

CBSE Class 12 board exams 2024 over; expected result date, trends of last 10 years
anam-khan

CBSE Class 12 accountancy board exam analysis 2024 out; paper rated easy, balanced

Latest Question