Published by:
CGP EDU Academic Team
Published on: August 14, 2026
Lithium oxide (Li 2 O; molar mass = 30 g mol –1 ) is used in space shuttles to remove water vapour according to the following reaction
Li 2 O (s) + H 2 O(g) → 2LiOH (s)
If 60 kg of water and 45 kg of Li 2 O are present in a shuttle
(I) water will be removed completely
(II) Li 2 O will be the limiting reagent
(III) 75 kg of Li 2 O will be required to completely remove the water present
(IV) 27 kg of water will remain in the shuttle at the end of the reaction
Text Solution
Verified by ExpertsThe correct answer is:
D
Limiting Reagent Excess Reagent
Initially 
or 
require 
will require 
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