9th Class Chemistry English Medium Online Test For Full Book With Answers

9th Class Chemistry English Medium Online Test For Full Book

Sr. # Questions Answers Choice
1 Concentration is process of: Mixting technique Separating technique Boiling technique Cooling techique
2 Chalco-Pyrite is an ore of: Copper Silver Iron Aluminium
3 the chemical formula of chalcopyrite is: Cu<sub>2</sub>S CuFe<sub>2</sub>S CuS FeS
4 Concentration of copper are is carried out by process. Roasting Forth floatation Gravity sepration Electrostatic separation
5 Swimming pools are cleaned by a process: Hydrogenation Bromination Chlorination Nitration
6 Which of the following gas is used to destroy harmful bacteria in water. Iodine Chlorine fluorine Bromine
7 Which one of the following disease causes severe diarrhea and can be fatal: Jaundic Dysentery Cholera Typhoid
8 Cholera is caused by Protozoa Virus Bacteria Fungi
9 Which gas is used to destroy harmful bacteria in water? Iodine Chlorine Flourine Bromine
10 Vibrious cholera bacteria causes the disease Cholera Diarrhea Jaundice Hepatitis
11 Which disease cause liver inflammation? Typhoid Jaundice cholera Hepatitis
12 Which compound protect teeth from diseases? Fluorine compound Chlorine compound Iodine compound Bromine compound
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