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प्रश्न
Select the ion, that would get selectively discharge from the aqueous mixture of the ions listed below :
\[\ce{SO^{2-}_{4}}\], \[\ce{NO^{-}_{3}}\], \[\ce{OH-}\]
उत्तर
OH-
APPEARS IN
संबंधित प्रश्न
State one relevant observation for the following:
At the anode, when molten lead bromide is electrolyzed using graphite electrodes.
Name a base which is a weak electrolyte.
Name a non-metallic element which is a conductor of electricity.
How is the passage of electricity through an electrolyte different from the passage of electricity through a copper wire?
Study the diagram given alongside and answer the questions that follow :
(i) Give the names of the electrode A and B.
(ii) Which electrode is oxidizing electrode?
A solution contains magnesium ions (Mg+2), iron (II) ions (Fe+2) and copper ions (Cu+2). On passing an electric current through this solution, which ions will be the first to be discharged at the cathode? Write the equation for the cathode reaction.
Select the correct answer from the choices a,b,c and d which are given. Write only the letter corresponding to the correct answer.
A compound which liberates reddish brown gas around the anode during the electrolysis in its molten state is:______________
State the observation at the anode and at the cathode during the electrolysis of :
Fused lead bromide using graphite electrodes
A strip of copper is placed in four different colourless salt solutions. They are KNO3, AgNO3, Zn(NO3)2 and Ca(NO3)2. Which one of the solutions will finally turn blue?
From the following list of substances choose those which meet the description given below.
Ammonium chloride, ammonium nitrate, chlorine, dilute hydrochloric acid, iron, lead nitrate, manganese (IV) oxide, silver nitrate, sodium nitrate, sodium nitrite, and sulphur.
Two compounds whose aqueous solutions give white precipitates with dilute hydrochloric acid.
