First slide
Atomic and physical properties
Question

Statement I : Al liberates hydrogen gas with both NaOH and HCl
Statement II : Al is amphoteric metal

Moderate
Solution

"Al" shows amphoteric nature,since it reacts with both acids and bases.

2Al + 6HCl 2AlCl3 + 3H2

2Al + 2NaOH + 2H22NaAlO2 +3H2

Therefore statement-I and statement-II are true

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