Sail E0 Webinar

MCQs

Total Questions : 45 | Page 2 of 5 pages
Question 11. The ability of sulphur dioxide to reduce iodine is used in which of the following methods?
  1.    Colorimetry
  2.    Conductivitimetry
  3.    Coulometry
  4.    Gas chromatography
 Discuss Question
Answer: Option C. -> Coulometry
Answer: (c).Coulometry
Question 12. Which of the following methods are not used for the measurement of sulphur dioxide?
  1.    Colorimetric method
  2.    Correlation spectroscopy
  3.    Paramagnetic analyzers
  4.    Flame-photometry
 Discuss Question
Answer: Option C. -> Paramagnetic analyzers
Answer: (c).Paramagnetic analyzers
Question 13. Which of the following is the detection limit of the coulometric method used for measurement of sulphur dioxide?
  1.    0.1 ppm
  2.    1 ppm
  3.    2 ppm
  4.    0.01 ppm
 Discuss Question
Answer: Option D. -> 0.01 ppm
Answer: (d).0.01 ppm
Question 14. Which of the following materials are used as electrodes in the coulometric method for the measurement of sulphur dioxide?
  1.    Gold
  2.    Silver
  3.    Platinum
  4.    Nickel
 Discuss Question
Answer: Option C. -> Platinum
Answer: (c).Platinum
Question 15. Sensitivity to total sulphur by Flame-photometric detector is which of the following levels?
  1.    0.1 ppm
  2.    1 ppm
  3.    2 ppm
  4.    0.01 ppm
 Discuss Question
Answer: Option D. -> 0.01 ppm
Answer: (d).0.01 ppm
Question 16. NO can be analysed by converting it into NO₂ and passing it through potassium permanganate. Which of the following is the main disadvantage of this method?
  1.    Less accuracy
  2.    Dye formed is unstable
  3.    Dye formed is colourless
  4.    Quantity of dye is low
 Discuss Question
Answer: Option B. -> Dye formed is unstable
Answer: (b).Dye formed is unstable
Question 17. Which of the following is the most common application of Chemiluminescence method used for the analysis of Nitrogen oxides?
  1.    In medical applications
  2.    In automotive exhaust gases
  3.    In manufacturing processes
  4.    In chemical industries
 Discuss Question
Answer: Option B. -> In automotive exhaust gases
Answer: (b).In automotive exhaust gases
Question 18. In Jacob-Hochheiser method, NO₂ is passed through a dilute solution of sodium hydroxide forming the nitrite ion. The nitrite ion is reacted with sulphanilamide and ethylene diamine in which of the following to form the highly coloured azo dye?
  1.    Sulphuric acid
  2.    Hydrochloric acid
  3.    Nitric acid
  4.    Phosphoric acid
 Discuss Question
Answer: Option D. -> Phosphoric acid
Answer: (d).Phosphoric acid
Question 19. Which of the following is the wavelength at which CO laser operates?
  1.    1.005 µm
  2.    5.307 µm
  3.    4.952 µm
  4.    6.179 µm
 Discuss Question
Answer: Option B. -> 5.307 µm
Answer: (b).5.307 µm
Question 20. Which of the following methods results in the formation of yellow coloured compound?
  1.    Griess-Saltzman method
  2.    Phenoldisul phonoic acid method
  3.    Chemiluminescence method
  4.    West-Gaeke method
 Discuss Question
Answer: Option B. -> Phenoldisul phonoic acid method
Answer: (b).Phenoldisul phonoic acid method

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