Mole is represented by……..
a) M
b) mol
c) m
d) all of these
12g of carbon means………….
a) 1 mole
b) 2 moles
c) 3 moles
d) 4 moles
1 mole of NaCl = …………
a) 58.5 mg
b) 58.5 g
c) 58.5 kg
d) 58.5 ng
Molecular mass of water is………..amu.
a) 18
b) 12
c) 16
d) 14
When atomic mass is expressed in grams, it is called…………
a) gram atomic mass
b) gram molecular mass
c) gram formula mass
d) molecular mass
1 gram atom mass of different elements have ……… masses.
a) same
b) different
c) equal
d) none of these
