Which of the following detectors are generally used for detection in – McqOptions

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1.	Which of the following detectors are generally used for detection in NO analysis using CO laser?
A.	Photomultiplier tube
B.	Photovoltaic cell
C.	Liquid nitrogen cooled Ge-Au element
D.	Photo emissive tube
Answer» D. Photo emissive tube

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A pink coloured dye complex is formed when air containing NO2 is passed in an absorbing solution consisting of __________ and diamine dissolved in acetic acid medium.$