The statement is not equivalent to
Truth Table of "if-then" -
-
Truth table of 'OR' operator -
Also ,
Interchanging the roles of q and r in the above paragraph, we find
is , but
and
Are not equivalent
50 mL of 0.2 M ammonia solution is treated with 25 mL of 0.2 M HCl. If pKb of ammonia solution is 4.75, the pH of the mixture will be : Option: 1 3.75 Option: 2 4.75
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