Question

1. The correct order of percentage of S in H2SO4 , H2S207 and H2S2O3 is

(A) H2S207 > H2S2Os >H2SO4mm
(B) H2S2O3 >H2SO4 > H2S207
(C) H2SO4 >H2S207> H2S208
(D) none of these

Answer 1

Answer:

Molecular weight of H2SO4

=2+32+64=98g

98g contains 32gm of S

∴ % of S in H 2

SO 4 = 9832

×100=32.65%

molecular weight of H2SO4, H2S2O7 & H2S203 is

d) none of these