Which compounds usually exist in the form of crystalline solids at room temperature?
Ionic
Covalent
co-ordinate
dative
Among the following, the one which is composed of all the three kinds of bond (ionic, covalent and coordinate bond) is
Sodium chloride
Ammonia
Carbon tetrachloride
Ammonium chloride
The ions in electrovalent compounds are held very strongly due to the strong forces of
Electrovalent
Electrostatic
Vanderwaal attraction
None of these
The most ionic compound of periodic table is
Potassium chloride
Magnesium chloride
Ceasium chloride
The number of electrons donated or accepted by the valence shell of an atom of an element to achieve stable electronic configuration is
Atomic structure
Electrovalency
Electronegativity
Electropositivity
Higher the lattice energy,greater will be the ease of formation of
atoms
molecules
elements
compounds
Which does not conduct electric current in the fused or dissolved states?
fused sodium chloride
molten sodium chloride
fused potassium chloride
urea
A substance undergoing oxidation acts as
oxidising agent
reducing agent
redoxing agent
dehydrating agent
Which shows non - directional bonding?
BCl3
CsCl
NCl3
BeCl3
Number of electrons present in the valence shell of all the noble gases except helium is
2
8
6
4
