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प्रश्न
Ionic compounds are electrically _______.
विकल्प
positively charged
negatively charged
neutral
conductor
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उत्तर
Ionic compounds are electrically neutral.
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संबंधित प्रश्न
Name one method for the refining of metals.
What is meant by refining of a metal? Name the most widely used method for the refining of impure metals obtained by various reduction processes. Describe this method with the help of a labelled diagram by taking the example of any metal.
Draw a neat labelled diagram.
Magnetic separation method.
Draw a neat labelled diagram.
Electrolytic reduction of alumina.
Draw a neat labelled diagram.
Hydraulic separation method.
Which of the following process to be carried out to avoid the
formation of greenish layer on brass vessels due to corrosion?
Electrolysis is used to obtain pure metal from impure metal.
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
During electrolytic refining of zinc, it gets
Which one of the following figures correctly describes the process of electrolytic refining?
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
- K and O2
Identify the terms for the following:
The electrode where reduction takes place.
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’.
