Verified Solution • 2025–26 Session moderate

QJEEAdv20Chd035: JEE Advanced 2020 Chemistry - Class 11 JEEAdv20Chd035 Solution: Aluminium reacts with sulphuric acid to form aluminium sulphate …

Aluminium reacts with sulphuric acid to form aluminium sulphate and hydrogen. What is the volume of hydrogen gas in litre (L) produced at 300 K and 1.0 atm pressure, when 5.4 g of aluminium and 50.0 mL of 5.0 M sulphuric acid are combined for the reaction?

(Use molar mass of aluminium as 27.0 g mol −- 1, R = 0.082 atm L mol −- 1 K −- 1)

Step-by-Step Verified Solution

Aluminium reacts with sulphuric acid to form aluminium sulphate and hydrogen.

2Al(5.427=0.2mol)+3H2SO4(50×51000=0.25mol)⟶Al2(SO4)3+3H2

H2SO4 is limiting reagent and moles of H2(g) produced = 0.25 mol

Using ideal gas equation,

pV = nRT

⇒\Rightarrow V=0.25×0.082×3001 atm=6.15 LV = {{0.25 \times 0.082 \times 300} \over {1\,atm}} = 6.15\,L

Related Learning Resources & Exam Preparation

JEE Advanced PYQ Question Bank
Browse year-wise authentic previous years' questions with solutions
Authentic CBT Mock Tests
Simulate official exam environment with live timer and percentile scoring