Pls solve it.

 

Option (b) is correct.

Given:

 

1 gm of hydrogen atoms

 

We know,

 

1 gm of hydrogen atoms = 1 mole 

 

1 mole of hydrogen =6.022×10²³ atoms

 

1 atom of hydrogen conatains 1 electron

 

Therefore 1 gm hydrogen atoms contains 6.022×10²³ electrons.

 

Now, for 1 gm of oxygen atoms

 

No. of moles of oxygen

     

 

1 mol of oxygen atoms = 6.022×10²³ atoms

 

 

so 0.0625 mol f oxygen atoms = 

 

For 2 gm oxygen atoms 

No. of moles of oxygen

 

     

 

1 mol of oxygen atoms = 6.022×10²³ atoms

 

so 0.125 mol f oxygen atoms = 

 

Therefore 2 gm of oxygen atoms will conatain 6.022×10²³ electrons which are same as in 1 gm hydrogen atom.