Question
#7-10
7. What is the formula for potassium diamminetetrachlorovanadate(un? 8. Potassium hexacyanoiron(l KulFe(cN.l, is water soluble. In an aqueous solution, it will decompose into ions. b. 4 ions. c, 5 ions. d. 6 ions e, 10 ions 9. All of the following complexes will be colored (in the visible) EXCEPT [Co(en) b. [Fe(CN)el e. [Cu(NH3)4 10. Alfred Wemer published his theory of coordination ry in 1893. One of the postulates of his theory that coordination complexes have "primary valences" and "secondary valences." He showed this by testing the of solutions containing lCo(NH3)shCI vs. lCo(NHa, cilcla vs. lCo(NHs) Clalci a, color b. conductivity c. density d. melting point e, taste
Explanation / Answer
7-c K[V(NH3)2Cl4] V has +3 oxidation state NH3 is nuteral ,Cl=-1 . so ,number of K - atom is 1
8-a -2 ions 4K+ + [Fe(CN)6]^4-
9-[Sc(NH3)6]^+3 Sc complex are white in colour
10- colour