The electro negativity of hydrogen atom is….
a) 2.1
b) 2.5
c) 2.7
d) 3.5
Because of polar nature of water, water is an excellent solvent for ionic solutes such as…..
a) mineral salts
b) mineral acids
c) mineral base
d) all of these
When an ionic compounds is added into water, ……….charged ions are surrounded by water molecules.
a) same
b) opposite
c) both a & b
d) none of these
……….is soluble in water.
a) NaCl
b) KCl
c) Na2
d) all of these
Hydrogen bonding in water:-
Because of the presence of two non-bonding electrons on oxygen in water, water molecules forms ………….. hydrogen bonds with other H2O molecules.
a) 2
b) 3
c) 4
d) 5
