Q. Which of the following Air Pollutant has maximum Relative toxicity ?
1) Carbon monoxide
2) Hydrocarbon
3) Oxides of sulphur
4) Oxides of Nitrogen
Q. Trapped dust particles are pushed out of respiratory tract by ......... epithelium.
1) Ciliated
2) Stratified
3) Sensory
4) Glandular
Q. ............ is often used as a preservative to protect processed food articles ?
1) Saccharin
2) BHT
3) Sodium Sulphate
4) Sodium metabisulphite
Q. Which of the following elements is not present in chemical fertilizers ?
1) Phosphorus
2) Hydrogen
3) Chlorine
4) Nitrogen
Q. Which of the following is not a noble gas ?
1) Helium
2) Hydrogen
3) Argon
4) Xenon
Q. Fire extinguishers emit which gas ?
1) Carbon monoxide
2) Chlorine
3) Carbon dioxide
4) Nitrogen
Q. Which acid is present in Acid Rain ?
1) Benzoic acid
2) Acetic acid
3) Nitric acid
4) Oxalic acid
Q. Which one of the following is a Sulpha drug ?
1) Penicilline
2) Streptomycine
3) Cibazole
4) Asprin
Q. Which one of the following is not a green house gas ?
1) Carbon dioxide
2) Methane
3) Propane
4) Ozone
Q. Which one of the following elements is kept safely in Kerosene oil ?
1) Sodium
2) Copper
3) Mercury
4) Silver
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