When metal �M� is treated with NaOH, a white gelatinous precipitate �X� is obtained
Channel: Doubtnut
Date: 2020-01-03

When metal �M� is treated with NaOH, a white gelatinous precipitate �X� is obtained, which is soluble in excess of NaOH. Compound �X� when heated strongly gives an oxide which is used in chromatography as an adsorbent. The metal �M� is