1.

Fe_2 (SO_2)_3 solution will

Answer»

turn blue litmus red
turn red litmus blue
turn phenolphthalein solution pink
both (b) and (C)

Solution :`Fe_2 (SO_4)_3` is an acidic salt. It is a slat of WEAK base `FE(OH)_2` and strong acid `H_2 SO_4` Hence, aqueous solution of this salt TURNS blue litmus red.


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