Chemistry
The property which is characteristic of an electrovalent compound is that :
- it is easily vaporized
- it has a high melting point
- it is a weak electrolyte
- it often exists as a liquid
Chemical Bonding
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Answer
it has a high melting point
Reason — Electrovalent compounds have a high melting point because there exists a strong force of attraction between the oppositely charged ions, so a large amount of energy is required to break the strong bonding force between ions.
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Related Questions
Complete the following
Sodium Phosphorus Carbon Formula of chloride Nature of bonding Physical state of chloride 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.When a metal atom becomes an ion :
- it loses electrons and is oxidized
- it gains electrons and is reduced
- it gains electrons and is oxidized
- it loses electrons and is reduced
Which of the following compounds has all three bonds — ionic, covalent and coordinate bonds ?
- Ammonia
- Ammonium chloride
- Sodium hydroxide
- Calcium chloride