Nursing Officer MCQ Test Quiz-18 For ESIC, UPSC, DSSSB, SGPGI, RML, BHU, UPUMS, KSSSC
Q5. विलुप्त वायु में ऑक्सीजन की सांद्रता लगभग कितनी है?
Concentration of oxygen in expired air is about?
A. 16%
B. 0%
C. 12%
D. 10% … Continue readingNursing Officer MCQ Test Quiz-18 For ESIC, UPSC, DSSSB, SGPGI, RML, BHU, UPUMS, KSSSC