Sail E0 Webinar

MCQs

Total Questions : 1041 | Page 6 of 105 pages
Question 51. Heating a mixture of phosphate rock, coke and sand in an electric furnace produces
  1.    Phosphoric acid
  2.    Ammonium phosphate
  3.    Phosphorous
  4.    Superphosphate
 Discuss Question
Answer: Option C. -> Phosphorous
Question 52. In the manufacture of orthophosphoric acid by strong H₂SO₄ leaching wet process, keeping the reactor temperature above 100°C, results in the formation of undesriable
  1.    CaSO₄ .½H₂O and CaSO₄ crystals
  2.    Pyrophosphoric acid
  3.    Metaphosphoric acid
  4.    All of the above
 Discuss Question
Answer: Option A. -> CaSO₄ .½H₂O and CaSO₄ crystals
Question 53. Which of the following is a natural inorganic fertiliser?
  1.    Chile salt petre
  2.    Oilcake
  3.    Gobar mannure
  4.    None of these
 Discuss Question
Answer: Option A. -> Chile salt petre
Question 54. Which of the following solvents is used for the extraction of H₃PO₄ from CaCl₂ solution during manufacture of ortho-phosphoric acid by wet process employing hydrochloric acid leaching?
  1.    Iso propyl alcohol
  2.    Butyl alcohol
  3.    Toluene
  4.    Hexane
 Discuss Question
Answer: Option B. -> Butyl alcohol
Question 55. Which of the following is not a mixed fertiliser?
  1.    Nitrophosphate
  2.    Calcium ammonium nitrate (CAN)
  3.    Ammonium phosphate
  4.    None of these
 Discuss Question
Answer: Option B. -> Calcium ammonium nitrate (CAN)
Question 56. Red phosphorous is changed into white phosphorous by
  1.    Heating in presence of light
  2.    Melting under pressure
  3.    Vaporisation followed by condensation
  4.    None of these
 Discuss Question
Answer: Option C. -> Vaporisation followed by condensation
Question 57. Nitrolime is
  1.    Calcium nitrate
  2.    Calcium ammonium nitrate
  3.    A mixture of nitric acid and lime
  4.    A mixture of ammonium nitrate and calcium nitrate
 Discuss Question
Answer: Option B. -> Calcium ammonium nitrate
Question 58. Which nutrient in fertiliser makes the plant stems stronger and increases branching?
  1.    Nitrogen
  2.    Phosphorous
  3.    Potassium
  4.    Calcium
 Discuss Question
Answer: Option B. -> Phosphorous
Question 59. Potassic fertilisers do not promote the development of
  1.    Stems & leaves during early stage of plant growth
  2.    Starches of potatoes & grains
  3.    Sugar of fruits & vegetables
  4.    Fibrous materials of plants
 Discuss Question
Answer: Option A. -> Stems & leaves during early stage of plant growth
Question 60. H₄P₂O₇ is the chemical formula of __________ phosphoric acid.
  1.    Pyro
  2.    Ortho
  3.    Meta
  4.    None of these
 Discuss Question
Answer: Option A. -> Pyro

Latest Videos
Chapter 1 - GLOBAL STEEL SCENARIO & INDIAN STEEL INDUSTRY Part 1 : (13-04-2024) INDUSTRY AND COMPANY AWARENESS (ICA)
Direction Sense Test Part 1 Reasoning (Hindi)
Chapter 1 - RMHP / OHP / OB & BP Part 1 : (14-02-2024) GPOE
Cube & Cuboid Part 1 Reasoning (Hindi)
Data Interpretation (DI) Basic Concept Reasoning (Hindi)
Counting Figures Part 1 Counting Of Straight Lines Reasoning (Hindi)
Sail E0 free webinar Webinars
Real Numbers Part 7 Class 10 Maths
Real Numbers Part 1 Class 10 Maths
Polynomials Part 1 Class 10 Maths

Latest Test Papers

Pie Chart - Test Paper 1 Data Interpretation Reasoning & DI
Tabulation - Test Paper 2 Data Interpretation Reasoning & DI
Test Paper 1 Direction Sense Test Reasoning & DI
ICA , RDIC,GFM Free Modal Test Paper - Non - Technical Branch Old Syllabus 2022 - SAIL Junior Officer E0
GFM Combined 1 Free Revision Test SAIL JO E-0