Electrolysis and Electrolytes
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Strong electrolytes are those which
[MNR 1983]
Conduct electricity
Dissociate into ions at high dilution
Completely dissociate into ions at all dilutions
Dissolve readily in water
Which of the following aqueous solution will conduct an electric current quite well
[MP PMT 1987]
HCl
Pure water
Glycerol
Sugar
An electrolyte
[KCET 1984; MP PET/PMT 1988]
Forms complex ions in solution
Gives ions only when dissolved in water
Gives ions only when electricity is passed
Possesses ions even in solid state
On the electrolysis of aqueous solution of sodium sulphate, on cathode we get
Na
H2
SO3
SO2
If the current is passed into the solution of an electrolyte
[AIIMS 1979]
Anions move towards anode, cations towards cathode
Anions and cations both move towards anode
No movement of ions takes place
Anions move towards cathode, cations towards anode
Which of the following will not conduct electricity in aqueous solution
[AMU 1982, 83]
Common salt
None of these
Sugar
Copper sulphate
- 1.4 C
- 18.4 C
- 4.3 C
- 8.6 C
Which of the following compounds will not undergo decomposition on passing electricity through aqueous solution
[MP PET 2001]
Sugar
Sodium Chloride
Sodium Bromide
Sodium Acetate
Electrolytes when dissolved in water dissociates into ions because
[CPMT 1974, 78; MNR1983]
The force of repulsion increases
They are unstable
The water dissolves it
The forces of electrostatic attraction are broken down by water
Electric current is passed through an aqueous solution of the following. Which one shall decompose
[NCERT 1972]
Ethyl alcohol
Glucose
Urea
AgNO3