Question

Following Sidwick’s rule of EAN, Co2(CO)x will be

Solution

Correct option is

Co2(CO)8

 

EAN = 36 = 27 electrons of Co atom + 1 electron shared from another Co atom  electrons of from x CO molecules

⇒    x = 8.

SIMILAR QUESTIONS

Q1

Which of the following polymerization isomers of the compound having empirical formula Cr(NH3)3(NO2)3 has the lowest molecular mass?

Q2

Octahedral complex of Ni (II) must be

Q3

Octahedral complex of Cr(III) will be

Q4

For the correct assignment of electronic configuration of a complex, the valence bond theory often requires the measurement of

Q5

Mn2+ forms a complex with Br ion. The magnetic moment of the complex is 5.92 B.M. What would be the probable formula and geometry of the complex? 

Q6

How many isomers are possible for the complex ion [Cr(NH3)(OH)2Cl3]2–

Q7

A complex of certain metal has the magnetic moment of 4.91 BM whereas another complex of the same metal with same oxidation state has zero magnetic moment. The metal ion could be

Q8

The EAN of metal atoms in Fe(NO)2(CO)2 and Co2(CO)8 respectively are

Q9

The value of in HxCr(CO)5 is

Q10

 

In the reactions  

   

two isomers of the product are obtained. The initial complex is