Question

What happens when you bring a burning match stick near the

mouth of a test tube containing aluminium foil reacting with

sodium hydroxide ?​

Answer 1

There is a pop sound when the burning match stick is brought near the mouth of the test tube. ... The sodium hydroxide in the test tube makes a pop sound again after bringing the burning match stick to the mouth of the test tube. 2Al(s)+2NaOH(aq)+6H
2
​
O(l)⟶2Na
+
[Al(OH)
4
​
]
−
(aq)+3H
2
​
(g)

or

2Al+2NaOH+2H
2
​
O⟶2NaAlO
2
​
+3H
2
​

(Both reactions can occur)

So, the product formed in process (ii) is NaAlO
2
​