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Analysis for anions (acid radical) and for cations (basic radical), the two parts of inorganic qualitative: analysis, are carried out separately. Either part may be attacked first.

Cations are positively charged fragments or ions of salt or compound. They are frequently referred to as the metals or basic radicals. In studying an unknown, a visual examination should come first. If the unknown is a solution, what color is it ? Color is important because some inorganic ions reveal their identities through color alone.