PPSC Chemistry Part V Environmental Chemistry Online Test With Answers

PPSC Chemistry Part V Environmental Chemistry Online Test

Sr. # Questions Answers Choice
1 Which of the following compounds has fishing ordure ammonia Organic sulphides Amines H2S
2 Which of the following is not biological characteristics of water. COD Animals Plants Viruses
3 Which of the following is not chemical characteristics of water. pH COD BOD Colour
4 Which of the following process is not physical in nature. Mixing Flocculation Sedimentation Activated sludge process
5 Which of the following water require zero hardness. Boiler feed water Laundry water Paper will water Dyeing water
6 Permanent hard water is softened by addition of. Na2CO3 CaCO3 MgCO3 ZnCO3
7 Temporary hard water is softened on industrial scale by adding. Mg(OH)2 Ca(OH)2 KOH NaOH
8 Permanent hardness of water is due to. Sulphate of Ca Chloride of Ca Sulphate of Mg All above
9 Temporary hardness of water is due to. Bicarbonates of K Bicarbonates of Na Carbonates of Ca Bicarbonates of Ca
10 Which of the following statement is not correct with respect to hardness of water. It is due to soluble salts of Na it is due to soluble salts of Ca It is due to soluble salts of Mg It is due to soluble salts of Fe
11 The hardness of water i s due to the presence of dissolved soluble salts of. Calcium Megnesium Iron All above
12 Water that easily forms a lather of films and frotha when agitated with a soap solution called. Hard water Heavy water <div>Soft water</div> Washing water
13 Which of the following statements is not related with principal requisites of water for industrial purposes. It should be pure and cool It should not contain iron It contains less quantity of line It must be soft
14 Which of the following health effect is caused by cadmium. Hypertension Cardiovascular problem Kidney damage All above
15 Which of the following health effect is caused by mercury. Nerve damage Brain damage Kidney damage All above
16 Which of the following health effect is caused by lead. Cancer Neurotoxin Hypertension Kidney damage
17 Which of the following process is used for the removal of gases. Precipitation Chemical reaction in the atmosphere Absorption All above
18 Which of the following process is used for the removal of particulates. Wet removal by precipitation Sedimentation Diffusion and impaction All above
19 Which of the following pollutants results from chemicals petroleum and paper industries. SO2 CO Hydrocarbons All above
20 Which of the following pollutant result from roasting and heating processes. Dust Smoke Metal fumes All above
Download This Set

Is this page helpful?