Thank you for registering.

One of our academic counsellors will contact you within 1 working day.

Please check your email for login details.
MY CART (5)

Use Coupon: CART20 and get 20% off on all online Study Material

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: Rs.

There are no items in this cart.
Continue Shopping

F - centres are - (a) The electrons trapped in anionic vacancies (b) The electrons trapped in cation vaccancies (c) Non equivalent sites of stoichiometric compounds (d) All of the above.

F - centres are -

(a) The electrons trapped in anionic vacancies
(b) The electrons trapped in cation vaccancies
(c) Non equivalent sites of stoichiometric compounds
(d) All of the above.

Grade:12

1 Answers

Raheema Javed
156 Points
7 years ago
The correct answer is (a) The electrons trapped in anionic vaccancies.
An F-center, Farbe center or color center (from the original German Farbzentrum; Farbe means color, and zentrum center) is a type of crystallographic defect in which an anionic vacancy in a crystal is filled by one or more electrons. Electrons in such a vacancy tend to absorb light in the visible spectrum such that a material that is usually transparent becomes colored. This is used to identify many compounds, especially zinc oxide (yellow).

Think You Can Provide A Better Answer ?

Provide a better Answer & Earn Cool Goodies See our forum point policy

ASK QUESTION

Get your questions answered by the expert for free