acid radicals (p2)

acid radicals (p1)

(A) Cations are acidic radicals (R ) Cations are positively charged

Why is it necessary to test for the acid radicals first with dil. H_(2)SO_(4) and then with conc. H_(2)SO_(4) ?

Give two examples of acid radicals detected with concentrated H_(2)SO_(4) .

Give two examples of acid radicals detected with dilute H_(2)SO_(4) .

Write the names of the acidic radicals which can be tested by aqueous solution of barium chloride.