p-Block Elements - I
medium

એલ્યુમિનિયમના ઊભયધર્મી સ્વભાવના વાજબીપણા માટે પ્રક્રિયાઓ લખો.

Option A
Option B
Option C
Option D

Solution

A substance is called amphoteric if it displays characteristics of both acids and bases. Aluminium dissolves in both acids and bases, showing amphoteric behaviour.

$(i)\,\,2A{l_{(s)}} + 6HC{l_{(aq)}} \to 2A{l^{3 + }}_{(aq)} + 6C{l^ – }_{(aq)} + 3{H_{2(g)}}$

$(ii)\,\,2A{l_{(s)}} + 2NaO{H_{(aq)}} + 6{H_2}{O_{(aq)}} \to 2N{a^ + }{[Al{(OH)_4}]^ – }_{(aq)} + 3{H_{2(g)}}$

Standard 11
Chemistry

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