Name the following:
i) A strong base of a monovalent metal
ii) A weak base of a divalent metal
iii) A triacidic bsse of a trivalent metal other than aluminum
iv) A metallic oxide which is an alkali
v) A metallic oxide which is a base but not an alkali
vi) A base which is amphoteric in nature
vii) A base that does not contain a metal
viii) A hygroscopic base
ix) An alkali deliquescent in nature
x) An example of a base having acidity of two

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Solution

NaOH

Mg(OH)₂

Fe(OH)₃

Metallic oxide, Na₂O and corresponding alkali NaOH

CaO is a metallic oxide and corresponding base, Ca(OH)₂ isnot an alkali

Al(OH)₃

NH₃

NaOH, KOH

NaOH, KOH

Mg(OH)₂

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Q. Name
(a) a metallic hydroxide soluble in excess of NH₄OH.
(b) a metallic oxide soluble in excess of caustic soda solution.
(c) a strong alkali
(d) a weak alkali
(e) two coloured metal ions.
(f) two bases which are not alkalis but dissolve in strong alkalis.
(g) a coloured metallic oxide which dissolves in alkalis to yield colourless solutions.

Name :

(a) a metallic hydroxide soluble in excess of $N H_{4} O H$ .
(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 alkalis. (i) a coloured metallic oxide which dissolves in alkalis to yield colourless solutions.
(j) a colourless cation, not a representative element.