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प्रश्न
A strip of copper is placed in four different colourless salt solutions. They are KNO3, AgNO3, Zn(NO3)2, Ca(NO3)2. Which one of the solutions will finally turn blue?
उत्तर
AgNO3 will turn blue.
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संबंधित प्रश्न
The electrolysis of acidified water is an example of :
(A) Reduction
(B) Oxidation
(C) Redox reaction
(D) Synthesis
Molten lead bromide conducts electricity. It is called an ______. It is composed of lead ______ and bromide ______. The lead ions are ______ charged and are called ______. The bromide ______ are ______ charged and are called ______.
Write the difference between with examples:
Electrolytic dissociation and ionization
State the factors that influence the preferential discharge of ions at the electrodes.
Al+3 ,Cu+2 ,Na+ ,Zn+2 ions are present in aqueous solution, such that the concentration of ions is same, write the order of discharge of ions.
How is electrolytic dissociation different from thermal dissociation?
Classify the following substance:
Ammonium chloride
Correct the following statement:
Lead bromide conducts electricity.
Give reasons why sodium chloride will conduct electricity only in the fused or aqueous solution state.
State the observation at the anode and at the cathode during the electrolysis of :
Fused lead bromide using graphite electrodes
