Notifications
Clear all
0
12/12/2021 2:45 pm
Topic starter
2 g of aluminium is treated separately with excess of dilute H2SO4 and excess of NaOH. The ratio of the volumes of hydrogen evolved is
(a) 2 : 3
(b) 1 : 1
(c) 2 : 1
(d) 1 : 2
1 Answer
0
12/12/2021 3:20 pm
Correct answer: (b) 1 : 1
Explanation:
2Al + 3H2SO4 → Al2(SO4)3 + 3H2
2Al + 2NaOH + 2H2O → 2NaAlO2 + 3H2
The ratio of volumes of hydrogen evolved is 1:1.