Page No 172: - Chapter 7 P Block Elements Intext Solutions class 12 ncert solutions Chemistry - SaraNextGen [2024-2025]

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On April 24, 2024, 11:35 AM

Question 7.4:

Mention the conditions required to maximise the yield of ammonia.

Answer:

Ammonia is prepared using the Haber’s process. The yield of ammonia can be maximized under the following conditions:

(i) High pressure (∼ 200 atm)

(ii) A temperature of ∼700 K

(iii) Use of a catalyst such as iron oxide mixed with small amounts of K₂O and Al₂O₃

Question 7.5:

How does ammonia react with a solution of Cu²⁺?

Answer:

NH₃ acts as a Lewis base. It donates its electron pair and forms a linkage with metal ion.