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.

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Solution

(a) $C u (O H)_{2}$
(b) $Z n O$
(c) $N a O H$
(d) $N H_{4} O H$
(e) $N a^{+}, C a^{2 +}$
(f) $F e^{2 +}, M n^{2 +}$
(g) $A l u m i n i u m$
(h) $Z n (O H)_{2} a n d A l (O H)_{3}$

(i) $P b O$
(j) $A m m o n i u m i o n$

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Similar questions

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.

Write balanced equations for:
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(b)a coloured metallic oxide which dissolves in alkalis to yield colourless solutions.

Q. Identify the following : [5 MARKS]
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(b) two colourless gases which when mixed produce a white solid.
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(e) the chemical in which gold can be dissolved

Name
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(b) two colourless gases, which when mixed produce a white solid.
(c) two gases which chemically combine to form a liquid.
(d) a chloride which is soluble in excess of ammonium hydroxide.
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Q. Name the following:
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Amphoteric Metals Reaction

Standard X Chemistry

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(a) Cu(OH)2 (b) ZnO (c) NaOH (d) NH4OH (e) Na+,Ca2+ (f) Fe2+,Mn2+ (g) Aluminium (h) Zn(OH)2 and Al(OH)3 (i) PbO (j) Ammonium ion

(a) $C u (O H)_{2}$
(b) $Z n O$
(c) $N a O H$
(d) $N H_{4} O H$
(e) $N a^{+}, C a^{2 +}$
(f) $F e^{2 +}, M n^{2 +}$
(g) $A l u m i n i u m$
(h) $Z n (O H)_{2} a n d A l (O H)_{3}$

(i) $P b O$
(j) $A m m o n i u m i o n$