10th class Chemistry chapter 15 online mcq test with answers for matric part 2 chemistry unit 15(Water Preparation)

Chemistry 10th Class English Medium Unit 15 Online Test

Sr. #	Questions	Answers Choice
1	Vibrious cholera causes.	Choleera Dysentery Fluorsis Hepatitis
2	Which element do not causes toxicity in water?	Lead Arsenic Sodium Mercury
3	Which disease is caused by polluted water.	Cholera Typhoid Diarrhea All of them
4	Which element protects teeth from decay?	Potassium Fluorine Sodium Calcium
5	Example of pest is	Weeds Herbs Insect All of them
6	The depletion of which gas results in the death of aquatic life.	Oxygen Carbon di oxide Boath of them Nome of them
7	The salts of which element are present in detergent that causes the rapid growth of algae in water bodies is.	Phosphate Calcium Sodium All of them
8	Neurological damage is caused by the poisoning of.	Lead Cadimium Mercury All of them
9	Acute lead poisoning causes dysfunction of.	Kidney Liver CNS All of them
10	Which is not a heavy metal.	Cadmium Lead Zinc Murcury
11	Industrial effluents are highly	Toxic organic compounds. Inorganic salts. Heavy metals All of them
12	Mg²⁺ and Ca²⁺ ions react with soap to form calcium and magnesium salts of fatty acids called.	Gelatin Scum Paste None of them