Question

plzz ans all
25 marks ques​

Answer 1

here is your mate....

a - Na2SO4

here two moles of Na and 1 mole of SO2 is used.

B- CaO

here 1 mole of each Ca and O is used.

C-NaHCO3

here I mole of Na , Hy..and carbon.is used with 3 moles of oxygen

D- NH3

here I mole of N along with 3 moles of hydrogen.

e-(NH4)3Cr

here 3 moles of ammonium with 1 mole of Cr is used.

hope it helps you...