Match List I with List II :

	LIST I Mechanism steps		LIST II Effect
A.		I.	$$-$$ E effect
B.		II.	$$-$$ R effect
C.		III.	$$+$$ E effect
D.		IV.	$$+$$ R effect

Choose the correct answer from the options given below :

Identify B and C and how are A and C related?

Identify the correct set of reagents or reaction conditions '$$X$$' and '$$Y$$' in the following set of transformation.

In the precipitation of the iron group (III) in qualitative analysis, ammonium chloride is added before adding ammonium hydroxide to :