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Electroplater
GOLD PLATING
Set 7
Set 7
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Q5242
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Which solution is used for stripping of tin plating?
A
Copper sulphate and H<sub>2</sub>SO<sub>4</sub>
B
Copper nitrate and HNO<sub>3</sub>
C
Copper carbonate and HCL
D
Cyanide and acid
Q5243
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Which is the chemical symbol of silver?
A
A
B
Ag
C
Al
D
An
Q5244
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Which is the reason that the silver plating is coated on copper?
A
It has low resistance
B
It is high resistance
C
It has low weight
D
It has high efficiency
Q5245
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Which is used as a lining material for silver plating tank?
A
Rubber lining
B
PVC lining
C
Plastic lining
D
Steel lining
Q5246
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Which acid, the silver unable to resist?
A
Sulphuric acid
B
Citric acid
C
Nitric acid
D
Hcl acid
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