Assertion (A): In the synthesis of ammonia by Haber's process, mixture of potassium and aluminium oxides can be used as promoter. Reason (R): Promoter enhances the activity of catalyst.
A
Both (A) and (R) are true and (R) is the correct explanation of (A)
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B
Both (A) and (R) are true and (R) is not the correct explanation of (A)
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C
(A) is true and (R) is false
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D
(A) is false but (R) is true
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Solution
The correct option is C Both (A) and (R) are true and (R) is the correct explanation of (A) Promoter enhances the activity of catalyst (here iron), and because of which potassium and aluminium oxides are used as promoter in Haber's process.