Question

An amphoteric oxide ‘X’ reacts with aqueous NaOH

to form sodium aluminate. Identify the product when

‘X’ reacts with hydrochloric acid​

Answer 1

amphoteric oxide X is Al2O3 .

Al2O3 +6 HCl gives 2AlCl3 + 3H20

Answer 2

Answer:

1. X = Aluminium (Al) .

2.The product when Aluminium reacts with hydrochloric acid is 2AlCl3(aq) + 3H2(g).

Explanation:

i) 2X + 2Na(OH)2------→ 2NaAlO2 + 2H2.

ii) 2Al(s) + 6HCl(aq) -----→ 2AlCl3(aq) + 3H2(g).