Some Basic Concepts Of Chemistry Question 221
Question: $ H _2 $ evolved at STP on complete reaction of 27 g of Aluminium with excess of aqueous $ NaOH $ would be [CPMT 1991]
Options:
A) 22.4
B) 44.8
C) 67.2
D) 33.6 litres
Show Answer
Answer:
Correct Answer: D
Solution:
$ H _2O+\underset{27,gm}{\mathop{Al}},+NaOH\to NaAlO _2+\underset{\frac{3}{2}\times 22.4=33.6,L}{\mathop{\frac{3}{2}H _2\ \ \ \ }}, $
