Fsc Part 2 Chemistry Online Test-Chapter 16 Environment Chemistry | ilmkidunya

Chemistry Fsc Part 2 Chapter 16 Online Test

Sr. #	Questions	Answers Choice
1	Which one of the followings is not a pollutant.	CO2 NO2 CO SO2
2	On earth polar ice caps and glacier contains H2O	1% 2% 3% 10%
3	How much fresh water is used for domestic purpose	8% 23% 69% 100%
4	Half mass of atmosphere gases is present in.	5-6 km distance above the surface of earth 10 km above the surface 100 km above the surface 56 km above the surface
5	The temperature in the incineration of industrial and hazardous waste process has a range.	900 to 1000 <sup>o</sup>C 250 to 500<sup>o</sup>C 950 to 1300<sup>o</sup>C 500 to 900<sup>o</sup>C
6	In purification of potable water the coagulant used is	Nickel sulphate Copper sulphate Barium sulphate Alum
7	The main pollutant of leather tanneries in the waste water is due the salt of.	Lead Chromium (VI) Copper Chromium (III)
8	Ecosystem is smaller units of.	Lithosphere Hydrosphere Atmosphere Biosphere
9	Fungicides are teh pesticides which	Control the growth of fungus Kill insects Kill plant Kill herbs
10	A single chloride free radical can destroy how many ozone molecules.	100 100000 10000 10
11	The avoid teh formation of toxic compounds with chlorine which substance is used for disinfecting water.	KMnO4 O3 Alum Chloramines
12	Peroxyacetyl nitrate is an irritant to humab beings and it affects	Eyes Ears Stomach Nose
13	The pH range of the acid rain is.	7-6.5 6.5-6 6-6.5 Less than 5
14	Disinfection of water by chlorine is done by the production of.	NH2Cl NCl2 HOCl NHCl2
15	Water will be considered polluted if it has dissolved oxygen.	3ppm 4ppm 5ppm 6 ppm
16	The disease can be eradicated by using pesticides.	Malaria Yellow fever Sleeping sickness All of these
17	The minimum temperature of troposphere is.	-2<sup>o</sup>C -56<sup>o</sup>C -100<sup>o</sup>C 15<sup>o</sup>C

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