Question

Q20) when metal x is treated with sodium hydroxide, a white precipitate ( a ) is obtained, which is soluble in excess of naoh to give soluble complex (b). Compound (a) is soluble in dilute hcl to form compound (c). The compound (a) when heated strongly gives (d), which is used to extract metal. Identify x, a, b, c & d. Write suitable equation to support their identities

Answer 1

Since, mend X on treatment with sodium hydroxide gives white precipitate which dissolves in excess of NaOH to give soluble complex (B), therefore, the metal X is Al.

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