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| Chemistry 10th Chapter 15 Water Questions Bank |
Chemistry 10th Chapter 15 Water Solved MCQs, Short and Long Questions
Select the right Answer.
1. _______ is/are liver infection(s) caused by viruses.
2. _______ produces good lather with soap.
3. A disease that causes bone and tooth damage:
4. A large number of soap is wasted in formation:
5. Acute cadmium poisoning causes _______.
6. Acute lead poisoning causes dysfunction of:
7. An excess of bile pigment in the blood is a symptom of _______ disease
8. Aquatic animals feel suffocation and ultimately die due to insufficient supply of:
9. CaCO₂ + CO₂ + H₂O —→ :.
10. Chemical form of gypsum is:
11. Chemical formula of lime stone is:
12. Chlorine kills:
13. Cholera is an acute infection caused by_ bacteria:
14. Depletion of O₂ from water is not because of:
15. Detergents can work even in solutions:
16. Diarrhea may be caused by viruses:
17. Drinking hard water causes disorders:
18. Dysentery is a disease of:
19. Fertilizers are used to make up deficiency of:
20. Fluorosis is a disease caused by the consumption of excess :
21. Good quality Water is colorless and:
22. Gypsum is strongly in water:
23. Hard water can cause:
24. Hard water consumes large amount of ___ __ in washing purposes:
25. Hard water contains salts of
26. Hardness is of _types:
27. HCO₃ makes the water:
28. Heavy metals like Cadmium, Lead and Mercury are toric and health hazards for:
29. Hepatitis and can be transmitted by contaminated water:
30. Hookworm infects about. billion people worldwide per annum:
31. Hookworm infects the:
32. Human body consists of __ percent water:
33. Hydroxyl group (OH) is not present in
34. In some parts of the world, the water supply contains small amount of _ compounds:
35. Industrial effluents consist of:
36. Ionic compounds are soluble in water due to:
37. It is sodium salt of a long carboxylic acid:
38. Jaundice is caused by an excess of in blood:
39. Lack of proper sanitation facilities is the main cause of rapidly spreading diseases:
40. Mg²⁺ and Ca+2 ions react with soap to form calcium and magnesium salts of fatty acids called:
41. MgCO₃ + CO₂ +H₂O
42. Neurological damage is caused by the poisoning of:
43. One water molecule can form hydrogen bonding with _____ other water molecules
44. only … percent of the total water on the earth is potable :
45. Patient feels weakness and fatigue in:
46. Permanent hardness because of Mg²⁺ and Ca₂:
47. Permanent hardness can only be removed by using:
48. Permanent hardness is removed by adding:
49. Permanent hardness of water can be removed by:
50. Permanent hardness of water is due to _____ of calcium and magnesium
51. pure water has __conductivity:
52. Rapid growth of algae in water bodies is because of detergent having
53. Sea water is unfit for purposes:
54. Sodium zeolite is a naturally occurring resin of:
55. Soft water is that which produces _lather with soap:
56. Specific heat capacity of water is:
57. Specific heat capacity of water is:
58. Swimming pools are cleaned by:
59. Temporary hardness is because of presences of bicarbonates of _ _ and magnesium.
60. Temporary hardness is because of:
61. Temporary hardness is removed by adding: .
62. Temporary hardness of water is because of:
63. The _salt is present in detergents cause rapid growth of algae in water:
64. The boiling point of water is – at sea level
65. The chemicals used to kill or control pests are called pesticides. They are:
66. The consumption of excess fluoride leads to a diseased condition called:
67. The disease that causes bones and teeth damage is:
68. The freezing point of water is:
69. The maximum density of water is at 4°C:
70. The ocean contains about percent of world water:
71. The removal of .. and Ca’* ions which are responsible for the hardness is called water softening.
72. The removal of ______ ions causes water softening.
73. The structure of water molecule is
74. Typhoid is a dangerous _disease:
75. Use of detergents is increasing day by day for cleaning purposes in: :
76. Used water is called:
77. Vibrios cholera may be found in water contaminated by:
78. water also present in the atmosphere in form of:
79. Water borne diseases:
80. Water dissolves non-ionic compound by:
81. Water has surface tension:
82. Water is a universal solvent because of its:
83. Water is a universal:
84. Water is composed of:
85. Water is excellent solvent for: :
86. Water molecule has structure:
87. Water pollution causes rapid growth of:
88. Water pollution due to agriculture waste is because of use of the:
89. Water pollution is contamination of water:
90. Water pollution is unfit for : purposes:
91. Which element does not cause toxicity in water?
92. Which gas is used to destroy harmful bacteria in water?
93. Which of the following disease cause liver inflammation?
94. Which of the following ion does not cause hardness in water?
95. Which of the following is not soluble in water?
96. Which of the following metal is non-toxic?
97. Which of the following property is responsible for dissolving nonionic polar compounds in water?
98. Which of the following salt makes the water permanently hard?
99. Which of the following water borne disease is not caused by bacteria?
100. Which of these is not a symptom of jaundice?
101. Which one of the following diseases causes liver inflammation?
102. Which one of the following diseases causes severe diarrhea and can be fatal?
103. Which one of the following gases is used to destroy harmful bacteria in water?
104. Which one of the following ions does.not cause hardness in water?
105. Which one of the following properties of water is responsible for rising of water in plants?
106. Which one of the following salts makes the water permanently hard?
Short Questions
1. Complete and balance the following equation: Mg(HCO₃)₂+Ca(OH)₂→
2. Define soap. How can hard water reduce efficiency of soap?
3. Define water borne diseases.
4. Describe chlorination of water. Give its importance.
5. Describe the difference between temporary and permanent hardness of water.
6. Differentiate between soft and hard water.
7. Explain the chemistry of removing the temporary hardness by boiling water.
8. Explain why non-ionic polar compounds are soluble in water?
9. Give any two disadvantages of hard water.
10. Give composition of water molecule.
11. How can waterborne diseases be prevented?
12. How decaying plants consume oxygen?
13. How do detergents make the water unfit for aquatic life?
14. How do the pesticides cause water pollution?
15. How do the pesticides cause water pollution?
16. How does addition of Na₂CO₃ remove permanent hardness of water?
17. How does limestone dissolve in water?
18. How does sodium zeolite soften water?
19. How does the water used as a cleaning agent in industries causes pollution?
20. How does water dissolve sugar and alcohols?
21. How does water rise in plants?
22. How does water use as a cleaning agent in industries causes pollution?
23. How hardness of water is removed by using washing soda?
24. How is Jaundice caused? Write its symptoms.
25. How is rain water responsible for water hardness?
26. How is temporary hardness removed by Clark’s method?
27. How is typhoid caused?
28. How water borne diseases can be prevented?
29. Mention the causative agent and signs/symptoms of cholera.
30. Mention the disadvantages of detergents.
31. Name the properties of water which make it a universal solvent.
32. Point out two properties of water that make it an excellent solvent.
33. What are effects of temporary hardness in water?
34. What are the causes of hardness in water?
35. What are the disadvantages of detergents?
36. What are the dual effects of agricultural effluents?
37. What are the reasons of waterborne diseases?
38. What are waterborne diseases?
39. What do you mean by boiler scale?
40. What do you mean by boiler scales? How are they removed?
41. What do you mean by fluorosis?
42. What is an industrial waste?
43. What is capillary action?
44. What is dysentery?
45. What is hepatitis?
46. What is industrial effluent?
47. What is meant by fluorosis?
48. What is meant by leaching process?
49. What is the chemistry of removing the temporary hardness by boiling water?
50. What is the difference between biodegradable and non-biodegradable substances?
51. What is the difference between Hepatitis and Jaundice?
52. What is the effect of detergents on scarcity of oxygen?
53. What is the function of fertilizers?
54. What is the importance of unusually high heat capacity of water for our environment?
55. What is the importance of water for existence of life?
56. What is the principle of removing permanent hardness of water?
57. What is water pollution?
58. Which bacteria causes the cholera?
59. Which forces are responsible for dissolving polar substances in water?
60. Which industrial effluents cause water pollution?
61. Which salts are responsible for hardness of water?
62. Which salts are responsible for temporary and permanent hardness of water?
63. Why are non-polar compounds insoluble in water?
64. Why are pesticides used?
65. Why is sea water unfit for drinking purpose?
66. Why is the use of detergents increasing day by day?
67. Why is the water molecule polar?
68. Why is water called a universal solvent? Also state the properties that make it a universal solvent.
69. Why is water considered to be a universal solvent?
70. Write a note on occurrence of water.
71. Write characteristics of pure water.
72. Write the role of hookworm in causing waterborne diseases.
73. Write two properties of water.
Long Questions
1. Define hard water. Write the causes of hardness of water.
2. Explain extensive hydrogen bonding ability of water.
3. Explain four important water borne diseases. How can we prevent from water borne diseases?
4. Explain industrial effluents
5. Explain the methods of removing permanent hardness of water.
6. Explain the methods of removing temporary hardness of water.
7. Explain water is a universal solvent.
8. Explain water pollution due to industrial waste.
9. How polarity of water plays its role to dissolve the substances.
10. What are agricultural effluents? What are their dual effects?
11. What are domestic effluents?
12. What is meant by hard water? Write its disadvantages.
13. Write any four properties of water.
14. Write down effects of water pollution.