| 1 |
Which disease causes bone and tooth damage? |
Fluorosis
Hepatits
Cholera
Jaundice
|
| 2 |
Cause of diarrhoea among following is: |
Diarrhea
Cholera
Cryptosporidium
Typhoid
|
| 3 |
Rapid growth of algae in water bodies in because of detergent having. |
Carbonat salt
Sulphonic acid
Sulphat salt
Phosphate salt
|
| 4 |
Which disease cause when humans use water of industrial effuents. |
Cancer
Asthma
Jaundica
Cholera
|
| 5 |
Which disease cause when humans use water of industrial effluents. |
Cancer
Asthma
Jaundice
cholera
|
| 6 |
The lives of aquatic plants and animals are indirectly related to concentration of dissolved gas in water. |
Nitrogen
Hydrogen
Oxygen
Carbon
|
| 7 |
Temporary hardness of water is removed by adding. |
Ca(OH)<sub>2</sub>
NaOH
KOH
CaSO<sub>4</sub>
|
| 8 |
The process of removing temporary hardness of water. |
Clark's method
Washing soda method
Sodium zeolite
Filteration method
|
| 9 |
The removal of Mg+2 and Ca+2 Ion which are responsible for the hardness of water is called. |
Temporary hardness
Permanent hardness
Water softening
Hydrogen bonding
|
| 10 |
Sodium zeolite is resin of: |
NaAl(SiO<sub>3</sub>)<sub>2</sub>
KAl(SiO<sub>3</sub>)<sub>2</sub>
LiAl(SiO<sub>3</sub>)<sub>2</sub>
RbAl(SiO<sub>3</sub>)<sub>2</sub>
|
| 11 |
Which one of the following ion does not cause hardness in water? |
Ca<sup>+2</sup>
Mg<sup>-2</sup>
SO<sup>-2</sup>
Na<sup>+</sup>
|
| 12 |
Clark's method is used to remove the hardness of water, in this method which is used. |
Ca(HCO<sub>3</sub>)<sub>2</sub>
Na-Zeolite
Ca-Zeolite
Ca(OH)<sub>2</sub>
|
.gif)
Home
News
Colleges
Courses
Admission
Lectures
Online Test
Past Papers
Date Sheets
Results
Study Abroad
Jobs
Tutors
More
Apps
