The ions in electrovalent compounds are held very strongly due to the strong forces of
Electrovalent
Electrostatic
Vanderwaal attraction
None of these
A molecule contains a triple bond
Hydrogen
Ammonia
Nitrogen
Sulphur
Higher nuclear charge and the smaller internuclear distance favours which bond?
Ionic
co-ordinate
dative
covalent
Which compounds have definite crystal lattice?
Covalent
Divalent
Trivalent
Electrovalent compounds have boiling point
Low
High
Zero
average
Who defined oxidation is the process in which an atom,molecule or ion loses one or more electrons?
Lewis
Arrhenius
Lawry Bronsted
JJ Thomson
There is a transference of one or more electrons from one atom to the other and the bond formed is known as
coordinate bond
valence bond
Which does not conduct electric current in the fused or dissolved states?
fused sodium chloride
molten sodium chloride
fused potassium chloride
urea
CCl4 is insoluble in water because
Water is polar
CCl4 is non polar
Water and CCl4 are polar
Water and CCl4 are non polar
Which of the following has the largest electron affinity?
F
Cl
Br
I
