Which of the following is iso-electronic :- | Chemistry | SolveeIt

Question

Which of the following is iso-electronic :-

$CO_2,NO_2$

$NO_2^- , CO_2$

$CN^- ,CO$

$SO_2 ,CO_2$

Answer

$CN^- ,CO$

Explanation

Solution

$CN^-$ and $CO$ are isoelectronic because they have equal number of elections.
In $CN^-$ the number of electrons $= 6 + 7 + 1 = 14$
In CO the number of electrons $= 6 + 8 = 14$

Chemistry Question on Chemical bonding and molecular structure

Solution