Q28 of 43 Page 258

How many ions are produced from the complex Co(NH3)6Cl2 in solution?

(i) 6 (ii) 4 (iii) 3 (iv) 2

The given complex can be written as :

Coordination sphere: [Co(NH3)6]2+


Counter ions: 2Cl- ions. {considering total overall charge as zero}


Thus we can see that there are total of 1 + 2 ions.


More from this chapter

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26

What is meant by the chelate effect? Give an example.

 27

Discuss briefly giving an example in each case the role of coordination compounds in:

(i) biological systems (iii) analytical chemistry


(ii) medicinal chemistry and (iv) extraction/metallurgy of metals.

 29

Amongst the following ions which one has the highest magnetic moment value?

(i) [Cr(H2O)6]3+ (ii) [Fe(H2O)6]2+ (iii) [Zn(H2O)6]2+

 30

The oxidation number of cobalt in K[Co(CO)4] is

(i) + 1 (ii) + 3 (iii) –1 (iv) –3