Statement `:` Solids containing `F-` centres are paramagnetic.
Explanation `: F-` centres solids possess holes occupied by unpaired electrons.

Solids containing F-centres are paramagnetic and coloured. Why?

Why solids with F-centres are paramagnetic?

Assertion (A) : Solids containing F centres are paramagnetic. Reason (R ) : Solids containing F centres conduct electricity and it is n -type semiconduction.

Assertion (A) : Solids containing F centres are paramagnetic. Reason (R ) : Solids containing F centres conduct electricity and it is n -type semiconduction.

Assertion (A) : Solids containing F centres are paramagnetic. Reason (R ) : Solids containing F centres conduct electricity and it is n -type semiconduction.

What is F-centre? Why is a solid with F-centres paramagnetic?

Consider the following statements I. NaCl and KCl show metal excess defect due to anionic vacancies II. F- centres are the anionic site occupied by unpaired electrons III. F-centres is derived from the germen word farbenzenter for colour centre . F-centres impart yellow colour to the NaCl crystals Which of the above statements is / are correct ?