Which of the following method is adopted for the measurement of NO2 in – McqOptions

MCQOPTIONS

1.	Which of the following method is adopted for the measurement of NO2 in air?
A.	Chemiluminescence
B.	Beta attenuation
C.	Non-Dispersive Infra Red Spectroscopy
D.	Gravimetric
Answer» B. Beta attenuation

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