Statement I : Al liberates hydrogen gas with both NaOH and HCl
Statement II : Al is amphoteric metal
"Al" shows amphoteric nature,since it reacts with both acids and bases.
2Al + 6HCl 2AlCl3 + 3H2
2Al + 2NaOH + 2H2O 2NaAlO2 +3H2
Therefore statement-I and statement-II are true
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The bond dissociation energy of BF bond in BF3 is 646 kJ mol–1 whereas that of CF in CF4 is 315 kJ mol–1. The correct reason for higher BF bond dissociation energy as compared to that of CF bond is :
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