A Cuso. + Fe - FeSO4 + Cu
B. Fe$0.Zn -- ZnO, Fe
Inso. Cu - Cuso. Zn
D. Cu + AgNO, - CuNO, Ag
Q.8 When added to cold water, which metal produces lots of bubbles rapidly?
A Sodium
B. Copper
C. Magnesium
D. Zinc
0.9 Heavy motor vehicles such as trucks and tractors run on
A Petrol
B. Diesel
C Kerosene
D. Gasoline
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9) the answer bbbbbb
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