Advertisements
Advertisements
प्रश्न
Identify the terms for the following:
The electrode where reduction takes place.
Advertisements
उत्तर
Cathode
Explanation:
The cathode is a negatively charged electrode in the electrolytic process where reduction takes place. This electrode is rich in electrons therefore it helps cation to gain electrons and undergo a reduction reaction.
APPEARS IN
संबंधित प्रश्न
Explain how the following metals are obtained from their compounds by the reduction process:
(i) Metal M which is in the middle of the reactivity series.
(ii) Metal N which is high up in the reactivity series.
Give one example of each type
Draw a neat labelled diagram.
Magnetic separation method.
Draw a neat labelled diagram.
Hydraulic separation method.
Name one metal each occurring as :
A carbonate
Name one metal each occurring as :
An oxide
Ionic compounds are electrically _______.
\[\ce{Cu2S + 3Cu2O -> 6Cu + SO2}\]
The above process is:
Metals are refined by using different methods. Which of the following metals are refined by electrolytic refining?
(i) Au
(ii) Cu
(iii) Na
(iv) K
A reddish-brown metal ‘X’, when heated in air, gives a black compound ‘Y’, which when heated in the presence of H2 gas gives ‘X’ back. ‘X’ is refined by the process of electrolysis; this refined form of ‘X’ is used in electrical wiring. Identify ‘X’ and ‘Y’. Draw a well-labelled diagram to represent the process of refining ‘X’.
Answer the following question with reference to the electrorefining of copper:
What do you observe at the cathode?
