Select the correct option for decreasing order of number of atoms.
(I) 2 gm of hydrogen (II) 16 gm of sulphur
(III) 4 gm of oxygen (IV) 31 gm of phosphorus

Select the correct option for decreasing order of number of atoms. (I) 2 gm of dihydrogen (II) 16 gm of sulphur (III) 4 gm of oxygen gas (IV) 31 gm of phosphorus

The number of atoms in 20gm of CaCO_3 is:

The number of atoms in 10gm of CaCO_3 is:

The number of atoms in 50gm of CaCO_3 is:

Calculate the number of moles of 16 gm of Hydrogen gas.

The number of molecules present in one gm of hydrogen, is

Calculate the number of moles of 32 gm of oxygen gas.

The number of atoms in 100gm of CaCO_3 is: