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प्रश्न
Which of the following process to be carried out to avoid the
formation of greenish layer on brass vessels due to corrosion?
पर्याय
a) plating
b) anodization
c) tinning
d) alloying
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उत्तर
c) tinning
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संबंधित प्रश्न
What is aqua-regia?
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During the refining of an impure metal by electrolysis, the pure metal is a deposited ______.
Draw a neat labelled diagram.
Hydraulic separation method.
Name one metal each occurring as :
A carbonate
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The lightest liquid metal is ____________.
Bauxite is mixed with cryolite so as to
(i) reduce its melting point
(ii) increase its electrical conductivity
(iii) molten cryolite acts as a solvent
(iv) increase its melting point
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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
An electrolytic cell consists of
- positively charged cathode
- negatively charged anode
- positively charged anode
- negatively charged cathode
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Give the formulae of the stable binary compounds that would be formed by the combination of following pairs of elements.
- Mg and N2
- Li and O2
- Al and Cl2
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Answer the following question with reference to the electrorefining of copper:
What is the anode made of?
