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 Mis
(1) Ca
(2) Al
(3) Fe
(4) Zn
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Al
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Answer:
I think so it is aluminium(Al)
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