chemical effects of electric current quiz :)

Which Of The Following Is Not An Application Of The Chemical Effect Of Electric Current?

• Electroplating of metals

• Purification of metals

• Decomposition of elements

• Decomposition of compounds

Sugar solution is a good conductor of electricity.

• True

• False

which of the following statements is/are correct?

• The object to be electroplated is taken as the negative electrode

• One of the most common applications of chemical effect of electric current is electroplating

• Small amount of a mineral salt present naturally in water makes it a good conductor of electricity.

• all of them are correct

Which Of The Following Metals Is Used In Electroplating To Make Objects Appear Shining?

• Iron

• Copper

• Chromium

• Aluminium

If Plus Sign (+) Denotes The Positive Electrode And Minus Sign (-) Denotes The Negative Electrode, Then Which Of The Following Statement Is Correct For An Iron Spoon To Be Copper Plated?

• Iron spoon (+), copper plate (-), Iron sulphate electrolyte

• Iron spoon (-), copper plate (+), Iron sulphate electrolyte

• Copper plate (-), Iron spoon (+), Copper sulphate electrolyte

• Copper plate (+), Iron spoon (-), Copper sulphate electrolyte

• none of them

For Electroplating An Iron Object With Copper Metal Or Copper Plating, The method that we should not follow is?

• The iron object is made negative electrode.

• The copper plate is made positive electrode.

• Iron sulphate solution is taken as electrolyte.

• Copper sulphate solution is taken as electrolyte.