Question

$Conc.H_{2}S{O}_4$ will not give any gas with :

• A. $ZnS{O}_4$
• B. barium phosphate
• C. magnesium borate
• D. sodium oxalate

Answer 1

Answer: (A), (B), (C)

The correct options are
A barium phosphate
B $ZnS{O}_4$
C magnesium borate

Option (A),(B),(C) are correct.$S{O}_4^{2-}$, $P{O}_4^{3-}$, and $B{O}_3^{3-}$ do not react with $conc.H_{2}S{O}_4$.$C_2{O}_4^{2-}$ reacts with $conc.H_{2}S{O}_4$ giving $C{O}_2$ gas.