Question

A chloride dissolves appreciably in cold water. When placed ona platinum wire in Bunsen flame, no distinctive colour is noticed. The cation of chloride is :

• A. $M{g}^{2+}$
• B. $B{a}^{2+}$
• C. $P{b}^{2+}$
• D. $C{a}^{2+}$

Answer 1

Answer: (A)

$M{g}^{2+}$

Bunsen burner flame test is done with loop made of platinum wire and the salt is burned in flame to know the color of flame by colored salts. The positive test is given by lithium, sodium, calcium, barium but negative test is given by magnesium salts.