Question

The most stable ions is

Solution

Correct option is

[Fe(CN)6]3–

OH and CN ions are strong nucleophiles (ligands) but [Fe(OH)5]3– does not exists.

SIMILAR QUESTIONS

Q1

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

Q2

The value of in HxCr(CO)5 is

Q3

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

Q4

 

In the reactions  

   

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

Q5

On treatment of [Ni(NH3)4]2+ with concentrated HCl, two compounds I and II having the same formula, Ni(NH3)2Cl2 are obtained. I can be converted into II by boiling with dilute HCl. A solution of I reacts with oxalic acid to form [Ni(NH3)2(C2O4) whereas II does not react. Point out the correct statement of the following

Q6

The aqueous 0.01 m of [Co(NH3/6][Co(NH3)(NO2)5]3 is expected to have the depression of freezing point (Kf for water = 1.86 K/m)

Q7

Ethylenediaminetetraacetic acid (EDTA) is the antidote for lead poisoning. It is administered in the form of 

Q8

 

Which of the following ions are expected to be paramagnetic to the same extent? 

I. [FeF6]3–                              II. [MnCl4]2–

III. [NiCl4]2–     

Q9

Which of the following is an outer orbital complex?

Q10

Which of the following has the largest number of isomers?