Question

The ion that is isoelectronic with CO is

Solution

Correct option is

CN

Isoelectronic species have same number of electrons. 

Electrons in CO = 6 + 8

                           = 14 

Electrons in CN = 6 + 7 + 1 

                            = 14 

Electrons in   

                           = 17 

Electrons in 

                           = 15. 

  CO and CN are isoelectronic.

SIMILAR QUESTIONS

Q1

If a molecule MX2 has zero dipole moment, the sigma bonding orbitals used by M (atomic number < 21) are :

Q2

Which of the following molecules has three fold axis of asymmetry?

Q3

The correct order in which the O – O bond length increases in the following is

Q4

The bond angle between two hybrid orbitals is 105o. The percentage of s-character of hybrid orbital is between

Q5

White phosphorus (P) has

Q6

Two types FXF angles are present in which of the following molecules? (X= S, Xe, C)

Q7

In which pair of species, both species do have the similar geometry?

Q8

The bond angle in AsH3 is greater than that in

Q9

Which one among the following does not have the hydrogen bond?

Q10

The hybridization state of central atom in PCl5 is