Give the correct order of initials T or F for following statements. Use T if statement is true and F if it is false. (i) Valence bond theory explains the colour of the coordination compounds. (ii) If

Question

Give the correct order of initials T or F for following statements. Use T if statement is true and F if it is false. (i) Valence bond theory explains the colour of the coordination compounds. (ii) If during hybridization, the metal ion uses its outer orbitals, the complex so formed is called high spin complex. (iii) In the ring test for N O 3 − ​ removal of B r − and I − is done by adding AgNO 3 solution. (iv) Purple colouration is obtained when H 2 S gas is passed through a solution of sodium nitroprusside.

TestHub · Accepted Answer

(i) Valence bond theory does NOT explain the color of coordination compounds. Color is explained by Crystal Field Theory (CFT) or Ligand Field Theory (LFT). Thus, FALSE.

(ii) Outer orbital complexes are high spin complexes. Thus, TRUE.

(iii) In the ring test, $B r^{-}$ and $I^{-}$ do not interfere; $A g N O_{3}$ is used to remove interfering ions like $C O_{3}^{2 -}$ and $S O_{3}^{2 -}$ . Thus, FALSE.

(iv) The reaction of $H_{2} S$ with sodium nitroprusside does not produces a purple color since $H_{2} S$ is a weak acid and does not provide sufficient $S^{(2 -)}$ in solution.

Therefore, the correct order is FTFF.

Final Answer: The final answer is $B$

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