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(B) Which one of the following would feel attraction when placed in magnetic field: Co 2+ , Ag + ,Ti 4+ , Zn 2+  

Answer

Transition elements can be divided into 2 types based on their reaction to being placed in a magnetic field.

  • Paramagnetic elements experience attraction in a magnetic field.
  • They have unpaired electrons in their d-orbitals .
  • Diamagnetic substances do not react to a magnetic field.
  • They do not have unpaired electrons in their d-orbitals.

Co 2+ has three unpaired electrons so it would be paramagnetic in nature, hence Co 2+ ion would be attracted to magnetic field

Co2+ ELECTRON CONFIGURATION - Teachoo.jpg

Ag + does not have unpaired electrons so it would be diamagnetic in nature, hence Ag + ion would not be attracted to the magnetic field. 

Ag+ ELECTRON CONFIGURATION - Teachoo.jpg

Ti 4+ does not have unpaired electrons so it would be diamagnetic in nature, hence Ti 4+ ion would not be attracted to the magnetic field. 

Ti4+ ELECTRON CONFIGURATION - Teachoo.jpg

Zn 2+ does not have unpaired electrons so it would be diamagnetic in nature, hence Zn 2+ ion would not be attracted to the magnetic field.

Zn2+ ELECTRON CONFIGURATION - Teachoo.jpg

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Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 12 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.