Pd–CaCO3 with Pb(OAc)2
H2SO4
None of these
Who is second to the right of T?
CaCO3 does not dissolve in water, but in the presence of CO2 it dissolves to form ′X′
′X′ is
B+H2SO4→A+SO2
B+HNO3→A+NO2A is
Na2B4O7+2HCl⟶2NaCl+A Na2B4O7+H2SO4→Na2SO4+A. A is?