Electrolyte used for electroplating with silver is
AgCl
Na[Ag (NO3)2]
AgNO3
Na[Ag(CN)2]
A compound which liberates reddish brown gas around the anode during electrolysis in its molten state is:
Sodium chloride
Copper (II) oxide
Copper (II) sulphate
Lead (II) bromide
During the electrolysis of molten lead bromide, which of the following takes place?
Bromine is released at the cathode.
Lead is deposited at the anode.
Bromine ions gain electrons.
Lead is deposited at the cathode.
Which of the following substance would conduct electricity?
Aqueous sugar solution
Liquid oxygen
Dry common salt
NaCl
Which of the following combination is true for carrying out electroplating of an object?
Direct and large current
Alternative and small current
Alternative and large current
Direct and small current
Which of the following is a weak electrolyte?
Benzene
Sodium acetate
Ammonium hydroxide
Cations are formed by
loss of electrons
gain of electrons
Both of the above
None of the above
If sodium chloride solution is electrolysed using graphite electrodes, using the options below, choose the best option, which lists the ions attached to the anode.I. Na+ II. Cl- III. OH-
II only
II and III
I, II, III
III only
Can We expect that pure water normally conduct electricity?
will not
will
Sometimes
Rare
During electro refining impurities get collected near
anode
cathode
electrolyte
Vaporised