1.

Most acidic in water among alcl3,nicl3,fecl3,becl3

Answer»

in aqueous SOLUTION each of them would get hydrolysed to their respective bases & the salt that gives the weakest BASE will be the most ACIDIC in aqueous solutionIn that context due to the POSITION in the periodic table ,it should be ALCL3 which will furnish the weakest base Al(OH)3& hence most acidic



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