Sources, Impurities and Hardness of Water MCQ

Test your knowledge with important Sources, Impurities and Hardness of Water MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30+ more Sources, Impurities and Hardness of Water MCQs on Bissoy. Bissoy App

• Chemical composition of the lake water is _________
  ক

  Constant

  খ

  Not constant

  গ

  Some times constant

  ঘ

  Cannot be determined
• Amino acids comes under _________ impurity.
  ক

  Dissolved impurity

  খ

  Colloidal impurity

  গ

  Dissolved gases

  ঘ

  Bacterial impurities
• ___________ water contains more soluble salts than the surface water.
  ক

  Sea water

  খ

  Rain water

  গ

  Underground water

  ঘ

  Tank water
• In dissolved mineral salts ___________ gets converted into the bicarbonates by the action of carbondioxide by water.
  ক

  Carbonate of calcium

  খ

  Carbonates of magnesium

  গ

  Carbonates of calcium and magnesium

  ঘ

  Neither carbonates of calcium nor magnesium
• How many types of absorbed impurities in water are there mainly?
  ক

  2

  খ

  3

  গ

  4

  ঘ

  5
• The suspended impurities is negligible due to the filtering action of __________
  ক

  Water plants

  খ

  Dissolved impurities

  গ

  Soil

  ঘ

  Dissolved gases
• Which of the following is the suspended impurity?
  ক

  Iron hydroxide

  খ

  Dust

  গ

  Mud

  ঘ

  Nitrogen
• Surface water appears turbid due to the presence of the __________ which remains suspended in the water.
  ক

  Impurities

  খ

  Oxygen

  গ

  Nitrogen

  ঘ

  Water plants
• Well water in wells located in the areas of oil and gases will contain __________
  ক

  Ethane

  খ

  Methane

  গ

  Carbon

  ঘ

  Nitrogen
• Deep well water possess the rotten egg smell due to the dissolved ________
  ক

  Sulphide

  খ

  Sulphurous acid

  গ

  Hydrogen sulphide

  ঘ

  Hydrogen peroxide
• The colour and odour of the natural water is due to the presence of the ___________
  ক

  Dissolved organic matter

  খ

  Mud

  গ

  Leaves

  ঘ

  Other dust particles
• Lake water contains more __________ due to the biological oxidation of the organic matter.
  ক

  Oxygen

  খ

  Carbon dioxide

  গ

  Nitrogen

  ঘ

  Carbon monoxide
• ___________ is the purest form of the water obtained by natural distillation.
  ক

  Under ground water

  খ

  Sea water

  গ

  River water

  ঘ

  Rain water
• __________ of water is struck in underground which is not accessibly.
  ক

  1%

  খ

  2%

  গ

  3%

  ঘ

  4%
• The quantity of water available for the actual use is _________
  ক

  10%

  খ

  5%

  গ

  0.5%

  ঘ

  1%