E-PolyLearning

206. __________ catalyst is used in the production of urea from CO₂ and NH₃.
a. Vanadium pentoxide
b. No
c. Alumina
d. Nickel
View Answer Report Discuss 50-50!
Answer: (b).No

207. 5-10-5 fertilisers mean that they contain
a. 5, 10, 5% respectively of N₂, P₂O₅ and K₂O.
b. only 5 to 10% active fertiliser constituents.
c. 5 to 10% filler & carrier of soil conditioners.
d. none of these.
View Answer Report Discuss 50-50!
Answer: (a).5, 10, 5% respectively of N₂, P₂O₅ and K₂O.

208. Color of nitric acid is light yellow due to the presence of
a. NO
b. NO₂
c. N₂H₅
d. NH₃
View Answer Report Discuss 50-50!
Answer: (b).NO₂

209. Catalytic ammonia synthesis reaction as in Haber's process is
a. endothermic
b. exothermic
c. irreversible
d. none of these
View Answer Report Discuss 50-50!
Answer: (b).exothermic