WorksheetsChemical Effects of Electric Current
Total questions: 10
Worksheet time: 4mins
Which one is the polluting waste generated by electroplating factories?
Used up electrodes
Electrolytes
Corroded Metals
When acidified water is electrolysed using carbon electrodes. What is produced at (+) and (-) electrodes.
(+) - Oxygen; (-) - Hydrogen
(+) - Oxygen; (-) - Carbon
(+) - Hydrogen (-) - Oxygen
LED stands for
(a)
Select the poor conductors of electricity
Honey
Plastic
Vinegar
Distilled Water
We can electroplate plastic on iron.
True
False
To electroplate silver on Copper jewellery, the electrolyte that can be used is:
Copper Sulphate
Silver Nitrate
Ammonium Chloride
Sodium Chloride
In a conducting liquid electricity is conducted with the help of :
Proton
Neutron
Electron
Ions
During electrolysis the positively charged ions travel towards Cathode.
True
False
During electroplating ________ (electrode) reduces in size and ________(electrode) increases in size.
(a)
Bicycle bells and wheel rims are electroplated with which metal?
Tin
Nickle
Chromium
Silver
