Some Basic Concepts Of Chemistry Question 221

Question: H2 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:

H2O+Al27,gm,+NaOH→NaAlO2+32H2    32×22.4=33.6,L,

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