(a) Write the product formed when (i) 2-chloropropane is treated with alc. KOH. (ii) Aniline reacts with conc. H₂SO₄ at 453 – 473 K.

(b) When aniline is heated with CHCl₃ and alc. KOH, a foul smelling compound is formed. What is this compound?

(a) Complete the following chemical reactions:

(i) Na₂Cr₂O₇ + KCl →

(ii) 2MnO₄^- + 5SO₃^2- + 6H⁺→

(b) How does the color of Cr₂O₇^2- change when treated with an alkali?

(a) Draw the structures of geometrical isomers of [Fe(NH₃)₂ (CN)₄]^-.

(b) [NiCl₄]^2- is paramagnetic while [Ni(CO)₄] is diamagnetic though both are tetrahedral. Why? [Atomic number of Ni = 28]

OR

Define the following:

(a) Ambidentate ligands

(b) Spectro chemical series

(c) Heteroleptic complexes

(a) How will you convert the following: (i) Phenol to benzoquinone (ii) Propanone to 2-methyl propan-2-ol

(b) Why does propanol have higher boiling point than that of butane?

(a) Identify X and Y in the following:

(b) Amino group is o, p-directing for aromatic electrophilic substitution reactions. Why does aniline on nitration give m-nitroaniline?