Question 1 : In standard calomel electrode, for saturated KCL solution, electrode potential is__________
1. 0.897V
2. 0.456V
3. 0.3512V
4. 0.2415V
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Question 2 : The anode of the galvanic cell has __________
1. Positive polarity
2. Negative polarity
3. No polarity
4. Neutral
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Question 3 : The cleaning methods before applying the protective coating are of _________ types.
1. 3
2. 4
3. 5
4. 6
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Question 4 : The process of coating iron or steel sheet with a thin coat of zinc to prevent iron from rusting is called ____________
1. Tinning
2. Galvanisation
3. Metal cladding
4. Electroplating
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Question 5 : Electrolytes obey __________ to the some extent as metallic conductors.
1. Specific conductance
2. Ohms law
3. Molecular conductance
4. Equivalent conductance
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Question 6 : Which of the following are the strong electrolytes?
1. HCL
2. Acetic acid
3. Propinoic acid
4. H₂SO₃
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Question 7 : Corrosion due to difference in water level is__________
1. Soil corrosion
2. Oxidation corrosion
3. Pitting corrosion
4. Water line corrosion
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Question 8 : The resistance of the conductor in the electrolytic cell ___________with increase in temperature.
1. Increase
2. Decrease
3. Slightly increase
4. Do no change
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Question 9 : The process of gaining of electrons by metal ions with discharge of metal is called __________
1. De-electronation
2. Electronation
3. Reduction
4. Cathode
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Question 10 : The rusting iron is the __________
1. Oxidation corrosion
2. Liquid metal corrosion
3. Wet corrosion
4. Corrosion by other gases
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