Question

الم
Sally (d) Calcium salts colourley
(e) Aluminium salts. colourless
2. Name :
(a) a metallic hydroxide soluble in excess of NH,OH.
(b) a metallic oxide soluble in excess of caustic soda
solution.
(c) a strong alkali.
(d) a weak alkali.
(e) two colourless metal ions.
(f) two coloured metal ions.
(g) a metal that evolves a gas which burns with a pop
sound when boiled with alkali solutions.
(h) two bases which are not alkalis but dissolve in strong
11-olis
11rolie​

Answer 1

a) Cu(OH)2

b) ZnO

c) NaOH

d) NH4OH

e) Na+ , Cl-

f) Fe2+ , Mn2+

g) Aluminium

h) Zn(OH)2 , Al(OH)3

i) a colored cation Al ion

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