Class 9 Chemistry MCQ Chapter 9

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Class 9 Chemistry MCQ


____________ is an irreversible cell.
Dry cell
Chargeable cell
Zn cell
None of these

It is a good reducing agent
Fe
H
C
O

Which is used for industrial manufacture of NaCI?
Daniel cell

(‘radio-button-click-target–correctquestions’, “Down’s cell”)(‘radio-button-click-target’, “Nelson’s cell”)

None of these

Electrolyte is ____________ solid form.
in
Sometimes in
Never in
Always in

Metals are covered by using.

(‘radio-button-click-target’, “Baeyer’s test”)(‘radio-button-click-target’, “Bohr’s”)

Electrolysis
None

Which one of the following is not an electrolytic cell:
Down cell
Galvanic cell

(‘radio-button-click-target’, “Nelson’ cell”)

Both a and c

The oxidation number of chromium in K2Cr2O7 is:
+2
+6
+7
+14

In silver plating Anode is made of:
Gold
Ag
Neon
Nil

All electrolytes are:
Conductor
Insulator
Semi conductor
Nil

Addition of OXYGEN is called.
Reduction
Conduction
Oxidation
Nil

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