Environmental Chemistry-2 Water – Online MCQs – Chemistry 10th

Online MCQs Test | Chapter 6 : Environmental Chemistry-2 Water | Chemistry Class 10th | Sindh Board Science Group

Below Here to find Online MCQs Test of Chapter 6 (Environmental Chemistry-2 Water) Chemistry Class 10th Science Group – Sindh Board. According to New Examination Pattern / Syllabus 2023-24 of Sindh Board Karachi Hyderabad Larkana Sukkur and Mirpurkhas.

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Chap 6 - Environmental Chemistry-2 (Water) - Chemistry 10th

Science Group - Sindh Board

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1. The permanent hardness of water is due to presence of:

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2. It is known as the universal solvent.

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3. Which of the following is helpful for removal of permanent hardness:

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4. How much fresh water is present on earth (rivers and lakes):

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5. At 4°C, maximum density of water is:

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6. Which salts are excessively dissolved to make temporary hard water:

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7. Which type of bond is formed between H2O molecules:

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8. What percentage of water on the earth is salt water?

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9. The mechanism by which water rises from the roots of-plants to the leaves is known as:

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10. It is a gastrointestinal ailment caused by a waterborne microbe (protozoa) that causes diarrhea and vomiting.

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11. Which of the following water-borne diseases is of viral origin?

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12. Which of the following is NOT soluble in water?

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13. Water makes up around of the earth's surface.

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14. An excess of bile pigments in the blood causes

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15. What percentage of fresh water is accessible to humans?

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16. Hookworm larvae enter the body via the:

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17. Without water, a person can live no more than:

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18. Fluorosis can harm our:

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19. How much percentage (%) of the Earth’s Surface is covered with water?

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20. What percentage of water on the earth is fresh water?

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