Class 9 Chemistry MCQ
Copper extracted from its ore is ____________ % pure.
98%
99%
96%
Nil
In metal hydrides, the oxidation number of hydrogen is
+1
-1
+2
-2
It is a strong electrolyte
H2O
CH3COOH
NaOH
C6H6
____________ are good conductors of electricity.
Covalent compound
Metals
Both
None of these
____________ cell is made of two half of cells.
Zinc cell
Galvanic
Both
All
Which one is not a property of electrolytic cell?
It consists of one complete cell
Anode has +ve charge
It converts electrical energy into chemical one
Anode has -ve charge
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