Chemistry-
General
Easy
Question
Which of the following ions is discharged at the cathode when an aqueous solution of sodium hydroxide is electrolysed ?
- Hydrogen
- Hydroxyl
- Oxygen
- Sodium
The correct answer is: Hydrogen
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Which of the following reaction is possible at anode ?
Which of the following reaction is possible at anode ?
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When an aqueous solution of copper sulphate is electrolysed using copper electrodes the reaction at the anode is represented by
When an aqueous solution of copper sulphate is electrolysed using copper electrodes the reaction at the anode is represented by
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During the electrolytic reduction of alumina, the reaction at cathode is
During the electrolytic reduction of alumina, the reaction at cathode is
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Molten CuCl2 is electrolysed using platinum electrode The reaction occuring at anode is
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Which process occurs in the electrolysis of aqueous solution of nickel chloride at nickel anode?
Which process occurs in the electrolysis of aqueous solution of nickel chloride at nickel anode?
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For a reaction R1 , 
G = x KJ mol-1 For a reaction R2 , G = y KJ mol-1 Reaction R1 is non - spontaneous but along with R2 it is spontaneous This means that
For a reaction R1 , G = x KJ mol-1 For a reaction R2 , G = y KJ mol-1 Reaction R1 is non - spontaneous but along with R2 it is spontaneous This means that
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For a spontaneous reaction, the G, equilibrium constant, K and E°cell will be respectively
For a spontaneous reaction, the G, equilibrium constant, K and E°cell will be respectively
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If an endothermic reaction is non-spontaneous at freezing point of water and becomes feasible at its boiling point, then
If an endothermic reaction is non-spontaneous at freezing point of water and becomes feasible at its boiling point, then
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For the precipitation reaction of Ag+ ions with NaCl which of the following statements is correct ?
For the precipitation reaction of Ag+ ions with NaCl which of the following statements is correct ?
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Although the dissolution of ammonium chloride in water is an endothermic reaction, even then it is spontaneous because:
Although the dissolution of ammonium chloride in water is an endothermic reaction, even then it is spontaneous because:
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At 27°C the reaction, 
proceeds spontaneously because the magnitude of
At 27°C the reaction, proceeds spontaneously because the magnitude of
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A reaction has both H and S negative The rate of reaction
A reaction has both H and S negative The rate of reaction
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The favourable conditions for a spontaneous reaction are
The favourable conditions for a spontaneous reaction are
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For which of the process, S is negative ?
For which of the process, S is negative ?
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For the process Dry ice →CO2(g)
For the process Dry ice →CO2(g)
chemistry-General
