Environmental Chemistry Water Test 02

Total Questions: 24

1 - Some organic compounds are soluble in water due to the presence of:

A ) -OH- ✅
B ) H+
C ) both a and b
D ) covalent bond

2 - Which of the following is soluble in water?

A ) organic acid
B ) glucose
C ) alcohols
D ) all of these

3 - Water which produces good lather with soap is called:

A ) soft water ✅
B ) hard water
C ) heavy water
D ) all of these

4 - Gypsum in water is:

A ) sparing soluble ✅
B ) insoluble
C ) highly soluble
D ) none of the above

5 - Calcium carbonate in water is:

A ) insoluble ✅
B ) sparingly soluble
C ) soluble
D ) none of the above

6 - Temporary hardness in water can be removed by:

A ) boiling method ✅
B ) using Washing soda
C ) using Sodium zeolite
D ) all of the above

7 - Hard water can cause:

A ) stomach disorder
B ) boiler blasts
C ) inefficiency of steam engine
D ) all of the above

9 - Industrial effluents are highly toxic:

A ) organic compound
B ) inorganic salts
C ) heavy metals
D ) all of the above

10 - Which is not a heavy metal?

A ) Cadmius
B ) lead
C ) zinc ✅
D ) mercury

11 - Acute cadmium poisoning causes:

A ) high blood pressure
B ) Kidney damage
C ) destruction of RBC's
D ) All of the above

12 - Acute lead poisoning causes dysfunction of:

A ) kidneys
B ) liver
C ) CNS
D ) all of these

13 - Neurological damage is caused by the poisong of:

A ) lead
B ) cadmium
C ) mercury ✅
D ) all of these

14 - The depletion of which gas in water results in the death of aquatic life:

A ) oxygen ✅
B ) carbon dioxide
C ) both of the above
D ) none of the above

15 - Example of pests is:

A ) weeds
B ) herbs
C ) insects
D ) all of these

16 - Which compounds protest teeth from decay?

A ) Fluorine compounds ✅
B ) lodine compounds
C ) Chlorine compounds
D ) Bromine compounds

17 - Which disease is caused by polluted water?

A ) cholera
B ) typhoid
C ) diarrhea
D ) all of these

18 - Which element does not cause toxicity in water?

A ) lead
B ) arsenic
C ) Sodium ✅
D ) mercury

19 - Vibrious cholerae causes:

A ) cholerae ✅
B ) dysentery
C ) fluorosis
D ) hepatitis

20 - Which hepatitis is caused by contaminated water?

A ) Hepatitis A ✅
B ) Hepatitis B
C ) Hepatitis D
D ) Hepatitis C

21 - Hookworm infects:

A ) liver
B ) Small intestine ✅
C ) large intestine
D ) stomach

22 - Hookworm larvae enter the body thought:

A ) food
B ) water
C ) Skin ✅
D ) all of these

23 - A disease caused by excess of bile pigments in the blood is:

A ) Typhoid
B ) jaundice ✅
C ) Cholera
D ) Dysentery

24 - Soap is the sodium salt of long chain:

A ) amino acids
B ) fatty acids ✅
C ) nucleotides
D ) none of the above