Question

The salt which responds to dilute and concentrated $H_2SO_4$ is

• A. $CaF_2$
• B. $Ba(NO_3)_2$
• C. $Na_2SO_4$
• D. $Na_3PO_4$

Answer 1

Answer: (B)

$Ba(NO_3)_2$

Answer 2

$Ba \left( NO _{3}\right)_{2}$ responds to both dilute and concentrated $H _{2} SO _{4}$ $Ba \left( NO _{3}\right)_{2}+ H _{2} SO _{4}(\text { dil. }) \to BaSO _{4}(s) \downarrow +2 H +2 NO _{3}^{-}(aq)$ $Ba(NO_3)_2+H_2SO_4$ (Conc) $\to \underset{\text{White ppt. ( Sparingly soluble salt)}}{{BaSO_4}} ? +2HNO_3$