which will conduct more electricity ,compunds having high melting point and boiling point or less melting point and boiling point ? why ?

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Solution

There is no relation of melting point and boiling point with the conducting power of a substance. However, at higher temperature, kinetic energy of electron increases and hence its conducting power also increase.
Therefore we may say a compound in liquid state conducts more electricity than its solid state.

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Similar questions

Explain the following :

(a) Electrovalent compounds conduct electricity in molten or aqueous state.

(b) Electrovalent compounds have a high melting point and boiling point while covalent compounds have low melting and boiling points.

(a) Compound X consists of molecules.

Choose the letter corresponding to the correct answer from the options A, B, C and D given below :

(i) The type of bonding in X will be :

A. ionic B. electrovalent

C. covalent D. molecular

(ii) X is likely to have a :

A. low melting point and high boiling point,

B. high melting point and low boiling point,

C. low melting point and low boiling point,

D. high melting point and high boiling point.

(iii) In the liquid state, X will :

A. become ionic,

B. be an electrolyte

C. conduct electricity,

D. not conduct electricity.

(b) Electrons are getting added to an element Y :

(i) is Y getting oxidized or reduced ?

(ii) what charge will Y migrate to during the process of electrolysis ?

Which kind of compounds have very high boiling and melting points?

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