In the Haber process for the manufacture of ammonia, the catalyst used is: MCQ with Answer and Explanation

In the Haber process for the manufacture of ammonia, the catalyst used is:
A. Finely divided Iron (Fe)
B. Platinum (Pt)
C. Vanadium pentoxide (V₂O₅)
D. Nickel (Ni)
Answer: Option A
Solution (By JKSSB Mock Tests)
The Haber process synthesizes ammonia from nitrogen and hydrogen (N₂ + 3H₂ ⇌ 2NH₃). Finely divided iron acts as the catalyst, often with molybdenum as a promoter, to increase the rate of reaction at high pressure and moderate temperature. V₂O₅ is used in the Contact process.

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Vulcanization of rubber involves heating with:
A. Sulfur
B. Oxygen
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Correct Answer: Option A


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The element with atomic number 17 belongs to which group and period?
A. Group 7, Period 2
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Correct Answer: Option D


Explanation:
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An atom of element X has 6 protons and 8 neutrons. Its mass number is:
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Correct Answer: Option A


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