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Online Tests
Chemistry Fsc Part 1 Chapter 10 Online Test MCQs With Answers
Question # 1
If a strips of Cu metal is placed in a solution of FeSO4
Choose an answer
Cu will be precipitated down
Fe is precipitated out
Cu and Fe both dissolve
No reaction takes palce
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Question # 2
In Daniel cell, if salt bridge is removed between the two half cells, the voltage.
Choose an answer
Drops to zero
Does not changes
Increases gradually
Increases rapidly
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Question # 3
When a non-spontaneous redox reaction is carried out by using the electrical current, then the process is called
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Decomposition of the substances
Cracking
Hydrolysis
Electroiysis
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Question # 4
In silver oxide battery, anode is made of.
Choose an answer
Zinc
Copper
Lead
Graphite
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Question # 5
The over all positive value for the reaction potential predicts that process is energetically.
Choose an answer
Not feasible
Feasible
Impossible
No indication
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Question # 6
Standard hydrogen electrode has an arbitrarily fixed potential
Choose an answer
0.00 volts
1.00 volt
0.10 volt
None of these
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Question # 7
In H2SO4the oxidation number of 'S' is
Choose an answer
+2
+6
+8
+4
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Question # 8
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 # 9
Oxidation number of Cr in a C
2
CrO
4
is
Choose an answer
+2
+4
+6
+8
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Question # 10
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 # 11
During the electrolysis of molten NaCI, the ion which is reduce is
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Question # 12
What is the oxidation state of sulphur in SO3
2-
Choose an answer
-4
-2
+2
+4
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Question # 13
In given equation underlined element is. P+HNO3------------- H2PO4+NO+H2O
Choose an answer
Oxidized
Reduced
Neither oxidized nor reduced
Botha a and b
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Question # 14
Fuel cells are the means by which chemical energy may be converted into
Choose an answer
Heat energy
Magnetic energy
Sound energy
Electric energy
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Question # 15
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 # 16
A single lead cell provides volts
Choose an answer
2
4
6
8
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Question # 17
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 # 18
In which compound oxidation state of chlorine is +5
Choose an answer
NaCl
HOCl
NaClO3
NaClO2
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