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Consider the following pairs of ions  ...

Consider the following pairs of ions 
A) `Sc^(+3) and Ti^(+4)`
B) `Mn^(+4) and Fe^(+2)`
C) `Fe^(+2) and Co^(+3)`
D) `Cu^(+) and Zn^(+2)`
Among these pairs of ions, isoelectronic pairs would include 

A

B, C and D

B

A, C and D

C

A, B and D

D

A, B and C

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The correct Answer is:
B
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AAKASH SERIES-ATOMIC STRUCTURE-OBJECTIVE EXERCISE - 2
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