Chemistry > 2008 > 35
JAMB UTME
When a solution of ammonium trioxocarbonate(IV) is added to a solution of an unknown salt, a white precipitate which is soluble in dilute hydrochloric acid but insoluble in ethanoic acid is formed. This indicates the presence of
A.
Ca2+
B.
Na+
C.
Zn2+
D.
K+
Answer: A
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