NECO 2016 CHEMISTRY PRACTICAL
ANSWERS
B(ii).under observation: white ppt/precipitate
dissolves.
under inference: Cl^- confirmed.
B(iii).under observation: white ppt/precipitate
which is soluble in excess NH3 solution.
under inference: Zn^2+ present.
C(i).under observation: No visible reaction
with HNO3.
under inference: Al^3+,Pb^2+.........
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ANSWERS
B(ii).under observation: white ppt/precipitate
dissolves.
under inference: Cl^- confirmed.
B(iii).under observation: white ppt/precipitate
which is soluble in excess NH3 solution.
under inference: Zn^2+ present.
C(i).under observation: No visible reaction
with HNO3.
under inference: Al^3+,Pb^2+.........
More loading
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