(a) Arrange the following Bronsted acids in decreasing acidic strength:
`HCI,HBr, HI, CH_(3)COOH,HCO_(3)^(-)H_(2)O`.
(b) Arrange the following Bronsted bases in increasing basic strength:
`CO_(3)^(2-),NH_(3)SO_(4)^(2-),CI^(-),Br^(-),NO_(3)^(-)`.

Explanation

(a) The decreasing order of basic strength is :
`HI gt HBr gt HCI gt CH_(3)COOH gt HCO_(3)^(-) gt H_(2)O`
(b) the increasing orfer of basic strength is :
`Br^(-) lt CI^(-) lt NO_(3)^(-) lt SO_(4)^(2-) lt lt NH_(3) lt CO_(3)^(2-)`