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Q.

Consider the following pairs of ions
A) Sc+3 and Ti+4 

B) Mn+2 and Fe+2


C) Fe+2 and Co+3 

D) Cu+ and Zn+2


Among these pairs of ions, isoelectronic pairs would include

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a

B, C and D

b

A, C and D

c

A, B and D

d

A, B and C

answer is B.

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Detailed Solution

Sc+3 and Ti+4 

 Fe+2 and Co+3 

Cu+ and Zn+2

Have the same number of electrons 

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