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Solution


Q.

The number of moles of hydrogen molecules required to produce 20 moles of ammonia through Haber's process is             [2019]
1 40  
2 10  
3 20  
4 30  

Ans.

(4)

Haber’s process, N2+3H2→2NH3

2 moles of NH3 are formed by 3 moles of H2.

∴    20 moles of NH3 will be formed by 30 moles of H2.