Estimation of Hydrocarbons Online Exam Quiz
Estimation of Hydrocarbons GK Quiz. Question and Answers related to Estimation of Hydrocarbons. MCQ (Multiple Choice Questions with answers about Estimation of Hydrocarbons
In flame ionization detector, the ions collected on the negatively charged grid are amplified at the high impedance amplifier.
Options
A : TRUE
B : FALSE
C : -
D : -
In flame ionization detectors, which of the following is the range adequate for atmospheric sampling?
Options
A : 0-1 ppm
B : 0-2 ppm
C : 0-20 ppm
D : 0-100 ppm
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?
Options
A : Sulphuric acid
B : Hydrochloric acid
C : Nitric acid
D : Phosphoric acid
In Saltzman method, which of the following are formed when air containing NO2 is passed in an absorbing solution consisting of the sulphanilic acid and diamine dissolved in the acetic acid medium?
Options
A : Blue colour dye complex
B : Green colour dye complex
C : Pink colour dye complex
D : Orange colour dye complex
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?
Options
A : Less accuracy
B : Dye formed is unstable
C : Dye formed is colourless
D : Quantity of dye is low
Propane would give three times the intensity of response as compared to methane.
Options
A : TRUE
B : FALSE
C : -
D : -
Which of the following is not the characteristic of flame ionization detector?
Options
A : Good linearity
B : Narrow range of concentration
C : High sensitivity
D : Fast response
Which of the following is the most common application of Chemiluminescence method used for the analysis of Nitrogen oxides?
Options
A : In medical applications
B : In automotive exhaust gases
C : In manufacturing processes
D : In chemical industries
Which of the following methods make use of pyrolysis while used for detecting methane?
Options
A : Mass spectroscopy
B : Flame ionization detector
C : Ultraviolet absorption
D : Gas chromatography
Which of the following methods results in the formation of yellow coloured compound?
Options
A : Griess-Saltzman method
B : Phenoldisul phonoic acid method
C : Chemiluminescence method
D : West-Gaeke method
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