Electrovalency

Electrovalent bond-formation depends on:

Define the terms : [i] Electrovalent or ionic bond

Electrovalent compounds have .................. (high/low) melting points.

Electrovalent compounds have a ___________ boiling point. (lowlhigh)

Fill in the blanks from the choices given below: Electrovalent compounds have a..................... (low/high) boiling point.

Give reasons for the following: Electrovalent & polar covalent compounds conduct electricity in aqueous solution state

Fill in the blanks from the choice given: Electrovalent compoun have ____ [high/low] melting points.

[i] Incovalent compounds, the bond is formed due to __ [sharing/ transfer] of electrons. [ii] Electrovalent compounds have a__ [low/ high] boiling point. [iii] A milecule of __ contains a triple bond. [hydrogen, ammonia, nitrogen].

Give reasons for the following Electrovalent compounds are soluble in water, insoluble in organic solvents, good conductors of electricity in molten or aq.solution state, have high meltimg points and undergo electrolytic dissociation on pasaage of electric current, while covalent compounds are soluble in organic solvents, insoluble in water, non-conductors of electricity, have low melting points & undergo ionisation on passage of electric current.

Which of the following is an electrovalent linkage ?