NaNO3 + H2SO4 → A–– + HNO3
A–– + NaCl → Na2SO4 + HCl A is.
NaHSO2
NaHSO4
NaHSO3
None of these
NaNO3 + H2SO4 → NaHSO4 + HNO3
NaHSO4 + NaCl → Na2SO4 + HCl
Na2B4O7+2HCl⟶2NaCl+A Na2B4O7+H2SO4→Na2SO4+A. A is as follows:
Na2B4O7+2HCl⟶2NaCl+A Na2B4O7+H2SO4→Na2SO4+A. A is?
B+H2SO4→A+SO2
B+HNO3→A+NO2 A is