zero
one
two
three
The number of g-molecule of oxygen in 6.02 x 10^24 CO molecules is
The number of hydrogen bonds between guanine & cytosine in DNA is
The number of moles of solute present in 1 kg of a solvent is called its
The number of neutrons in dipositive zine ion (Zn2+, mass number 70 and atomic number 30) is
The number of neutrons present in an element having mass number 226 & atomic number 88 is:
The number of unpaired electrons in carbon atom is
The number of unpaired electrons in Mn2+ is
The number of water molecules present in a drop of water (volume 0.0018 ml) at room temperature is
The number of waves in n x 10th Bohrs orbit are
The number of waves made by an electron moving in an orbit having maximum magnetic quantum number is +3
