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12 Class CHEMISTRY CHAPTER NO.16 Environmental Chemistry Online Quiz MCQs Test

GRADE 12 – CHEMISTRY – CHAPTER NO. 16 – Environmental Chemistry – Online MCQs Board, MDCAT, UHS, PMC & ECAT Exam Preparation,

CHEMISTRY – 2nd Year
Chapter Name : Environmental Chemistry
Chapter No. 16
Multiple Choice Questions
Note : All MCQ’s selected in this test are from OLD F.Sc. board , UHS and PMC(Pakistan Medical Commission) Islamabad Papers.








Book Name :  CHEMISTRY
Chapter No.  16
Chapter Name : Environmental Chemistry
Total MCQ from Text Book :  49
Book Version  :
2022

Published By : Punjab Text Book Board Lahore
Approved By : Govt of the Punjab and Federal Ministry for Education
Test Type : MCQ’s
Exam conduct By : Inter Boards of Sindh, KPK, Balochistan, AJK, Gilgit Baltistan, Punjab & Federal
Class / Grade  : 12 ( F.Sc. Intermediate)
Total Marks : 49
Total Time :   49 minutes




8

GRADE 12 - CHEMISTRY - CHAPTER NO. 16 - Environmental Chemistry

GRADE 12 - CHEMISTRY - CHAPTER NO. 16 - Environmental Chemistry

1 / 49

Which of these pollutants is produced by burning of coal and causes acid rain (UHS 2018)

2 / 49

The purification of potable water the coagulant used is: (BWP, GRW 2017)(SWL 2019)

3 / 49

The decrease in ozone concentration in overhead atmosphere is occurring due to human activity. Half of the ozone over Antarctica has been depleted up to the year: (DGK 2016)

4 / 49

The residual ash after incineration of industrial waste is disposed off in a landfill, hwihc is lined with: (FSD 2015)(GRW 2017)

5 / 49

Coagulant used in water treatment (ECAT 2016)

6 / 49

Reducing smog contains high contents of: (LHR 2017)(GRW 2016)

7 / 49

Peroxyacetylnitrate (PAN) is an irritant to human beings and it effects: (LHR 2016)(BWP 2015)(SGD 2018)(RWP, FSD 2019)(LHR 2017,2018,2019 GII)

8 / 49

Half of the mass of atmosphere is concentrated in lower: (FSD 2016)

9 / 49

Fungicides are the pesticides which: (SGD 2018)

10 / 49

Biochemical oxygen demand is the capacity of organic matter in natural water to consume oxygen whithin a period of: (MTN 2015)(BWP 2016)

11 / 49

Compton of environment which consist of all water bodies is: (SWL, MTN 2017)

12 / 49

The temperature in the non-rotating chamber in the incineration of industrial and hazardous waste process has a range (GRW 2018)

13 / 49

A single chloride free radical can destroy how many zozone molecules: (GRW 2015)(DGK 2018, 2019 GII)(MTN 2019 GII)

14 / 49

________ is a secondary pollutant: (BWP 2016)(MTN 2017, 2018)(LHR 2017)

15 / 49

Newspaper can be recycled again and again by how many times? (GRW 2015)(DGK, FSD 2015,2017)(LHR 2015,2016)(SGD 2017)(SWL 2018)(RWP, SGD, AJK 2019 GII)

16 / 49

Proxy acetyl nitrate(PAN) is an irritant to human being and it effects: (RWP 2019)(LHR 2017, 2019 GII)

17 / 49

Newspaper can be recycled again and again by how many times?

18 / 49

Proxy acetyl nitrate is an irritant to human being and it effects: (UHS 2011)

19 / 49

The suspected liver carcinogen which also has negative reproduction and developmental effect on humans is: (UHS 2012)

20 / 49

Halogens are being used as fire extinguisher, mild antiseptic, CFCs and many other organic chemicals. Which of the following halotgens is used to kill bacteria in drinking water? (UHS 2018)

21 / 49

Ecosystem is a smaller unit of: (SGD 2015)(MTN 2015,2019)(GRW 2019 GII)

22 / 49

Incineration is a process in which solid-waste is burnt at elevated temperature. Following Temperature range is most effective: (LHR 2016,2017)

23 / 49

The unpolluted natural rain water is slightly acidic due to the reaction of rain water with: (UHS 2011)

24 / 49

The pH range of the acid rain is: (SGD, GRW 2016)(FSD 2017)(GRW 2016)(DGK, RWP 2018)(LHR,GRW,AJK 2019)

25 / 49

The pH range of the acid rain is: (MTN 2015)(SGD 2017)(BWP 2018)(DGK, GRW 2018, 2019)(LHR 2019)

26 / 49

The yellowish-brown colour in photochemical smog: (UHS 2013)

27 / 49

Lithosphere extends in earth up to the depth of: (SGD 2015)(GRW, LHR 2016)

28 / 49

Unpolluted rain water has a pH of: (UHS 2013)

29 / 49

The temperature in the non-rotating chamber in the incineration of industrial and hazardous waste process has a range

30 / 49

To avoid the formation of toxic compounds with chlorine which substance is used for disinfecting water. (GRW 2016)(RWP 2017)

31 / 49

The residence time of NO in atmosphere is: (SGD 2015)(GRW 2016)(AJK 2017)

32 / 49

________ is an eye irritant (UHS 2014)

33 / 49

Ecosystem is a smaller unit of: (FSD, BWP 2018 GII)(MTN 2019)

34 / 49

In purification of potable water the coagulant used is: (AJK 2017)(BWP 2018)(SWL 2019)

35 / 49

The coagulant used in raw water to precipitate suspended impurities is: (UHS 2010)

36 / 49

The main pollutant of leather tanneries in the waste water is due to the salt of: (LHR, MNT 2018)(SGD 2015, 2019)

37 / 49

The thickness of atmosphere is: (SWL 2014)

38 / 49

The main pollutant of leather tanneries in the waste water is due to the sat of: (LHR 2017)(MNT 2018)(SGD 2019)

39 / 49

Fungicides are the pesticides which: (BWP 2016)

40 / 49

The normal amount of overhead ozone is about: (GRW 2016)(LHR 2017)

41 / 49

A single chloride free radical can destroy how many zozone molecules: (GRW 2016)(DGK 2018)

42 / 49

Which one of the following pollutants can cause death of a person by binding with haemoglobin of red blood cells? (UHS 2014)

43 / 49

Which of the following would react with ozone in the atmosphere (UHS 2018)

44 / 49

The increase in concentration of oxidizing agents in smog like H2O2,HNO3, PAN and ozone in the air is called (UHS 2012)

45 / 49

Which is the metal, whose elevated concentration is harmful for fish as it clogs the gills thus causing suffocation? (UHS 2012)

46 / 49

Which gas is not a pollutant? (LHR 2014)

47 / 49

Following is better to disinfect water: (FSD 2015)(LHR 2016)(RWP, GRW 2017)

48 / 49

The pH range of acid rains is: (UHS 2012)

49 / 49

The mass of the lithosphere is made of: (BWP 2015)(LHR 2017)

Your score is

The average score is 45%

0%



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