Chemical Engineering Mcqs

Dehydration of ammonium carbamate produces__________________?

• (A)  Urea
• (B)  Biuret
• (C)  Ammonia water
• (D)  None of these

Answer

Submitted By :Ali Uppal

P2O5 content in superphosphate is about _____________ percent?

• (A)  30-35
• (B)  15-20
• (C)  65-70
• (D)  85-90

Answer

Submitted By :Ali Uppal

Promoter used in NH3 synthesis catalyst is__________________?

• (A)  K2O
• (B)  SiO3
• (C)  V2O5
• (D)  U2O3

Answer

Submitted By :Ali Uppal

Maximum stability of white phosphorous is at__________________?

• (A)  Very high pressure
• (B)  Atmospheric pressure
• (C)  Room temperature
• (D)  > 600°C

Answer

Submitted By :Ali Uppal

Potassic fertilisers__________________?

• (A)  Are useful during early stage of the plant growth
• (B)  Stimulate early growth and accelerate seeding
• (C)  Help in development of starches of potatoes and grain
• (D)  None of these

Answer

Submitted By :Ali Uppal

Which is the most suitable fertiliser for paddy ?

• (A)  CAN
• (B)  Ammonium sulphate
• (C)  Ammonium nitrate
• (D)  Superphosphate

Answer

Submitted By :Ali Uppal

Catalyst used in ammonia synthesis uses ____________ as a promoter?

• (A)  Pt
• (B)  K2O
• (C)  Al2O3
• (D)  Ni

Answer

Submitted By :Ali Uppal

Dehydration of ammonium carbamate (to produce urea) is a/an _____________ reaction?

• (A)  Reversible
• (B)  Catalytic
• (C)  Exothermic
• (D)  Endothermic

Answer

Submitted By :Ali Uppal

Potassic fertiliser is graded based on its ______________ content?

• (A)  KCl
• (B)  K2O
• (C)  KNO3
• (D)  K2SO4

Answer

Submitted By :Ali Uppal

Fertiliser produced during soda ash manufacture by dual process is ammonium______________________?

• (A)  Chloride
• (B)  Sulphate
• (C)  Nitrate
• (D)  None of these

Answer

Submitted By :Ali Uppal