Qualitative Analysis - Result Question 2
####2. When metal ’
(2018 Main)
(a)
(b)
(c) Al
(d)
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Solution:
- Among the given metals
forms white gelatinous ppt. with .
Hence, the probable metal can be Al. This ppt. is dissolved in excess of
Aluminium hydroxide on strong heating gives alumina
Thus, metal
Ca, being below sodium in electrochemical reactivity series, cannot displaces
Fe reacts with sodium hydroxide to form tetrahydroferrate (II) sodium which is again a soluble complex.