Class 9 Chemistry MCQ Chapter 7

9th Class Chemistry MCQS, 9th Class MCQS, MCQS 0

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____________ cell is made of two half of cells.
Zinc cell
Galvanic
Both
All
____________ is an irreversible cell.
Dry cell
Chargeable cell
Zn cell
None of these
Oxidation means
Gain of oxygen
Removal of oxygen
Gain of hydrogen
Gain of electrons
The cathode of Nelson’s cell is made up of
C
Zn
Cu
Fe
Electrolyte is ____________ solid form.
in
Sometimes in
Never in
Always in
Addition of OXYGEN is called.
Reduction
Conduction
Oxidation
Nil
Brine is an aqueous solution of
NaCI
NaOH
AgNO3
CaO
In metal hydrides, the oxidation number of hydrogen is
+1
-1
+2
-2
Which one is strong electrolyte ?
NH4OH
NaOH
a & b
Nil
____________ are good conductors of electricity.
Covalent compound
Metals
Both
None of these

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