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Online Tests
Chemistry Fsc Part 1 Chapter 10 Online Test MCQs With Answers
Question # 1
A single lead cell provides volts
Choose an answer
2
4
6
8
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Question # 2
Fuel cells are mostly used in space air crafts as the source of.
Choose an answer
Power only
Drinking water
Drinking water and power
Fuel and drinking water
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Question # 3
In which of the following changes, nitrogen in reduced.
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NH3 to NO
NH3 to NO3
N2 to NH3
N-3 to N2
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Question # 4
If a strip of Cu metal is placed in a solution of FeSO
4
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Cu will be precipitated out
Fe is precipitated out
Cu and Fe both dissolve
No reaction takes place
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Question # 5
What is oxidation state of chlorine in Ca(ClO3)2
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+1
+3
+5
+7
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Question # 6
Cell potential depends upon
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Temperature
Concentration of ions
Nature of electrolyte
All of above
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Question # 7
Oxidation number of Cr in a C
2
CrO
4
is
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+2
+4
+6
+8
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Question # 8
In H2SO4the oxidation number of 'S' is
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+2
+6
+8
+4
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Question # 9
Which is not use of electrochemical series.
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Feasibility of reaction
Measurement of EMF of cell
Comparison of reactivity with water or acids
Determination of atomic and ionic radii
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Question # 10
Electrolysis is used for
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Electroplating
Refining of copper
Manufacture of caustic soda
All of the above
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Question # 11
Choose an answer
Fe is reduced
Fe is oxidized
CI
2
is oxidized
None of these
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Question # 12
Stronger the oxidizing agent, greater is the
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oxidation potential
Reduction potential
Redox potential
E.M.F of cell
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Question # 13
The cell in which a non spontaneous redox reaction takes place as a result of electricity is known as.
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Voltaic cell
Denial cell
dry Cell
Electrolytic cell
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Question # 14
Alkali and alkaline earth metal are usually obtained by
Choose an answer
Decomposition of their carbonates
By heating their hydroxide
electrolysis of molten metal oxides
Electrolysis of molten metal halides
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