KCET · Chemistry · s Block Elements
The salt which responds to dilute and concentrated \( \mathrm{H}_{2} \mathrm{SO}_{4} \) is
- A \( \mathrm{CaF}_{2} \)
- B \( B a\left(N O_{3}\right)_{2} \)
- C \( \mathrm{Na}_{2} \mathrm{SO}_{4} \)
- D \( \mathrm{Na}_{3} \mathrm{PO}_{4} \)
Answer & Solution
Correct Answer
(B) \( B a\left(N O_{3}\right)_{2} \)
Step-by-step Solution
Detailed explanation
Reaction of \( \mathrm{Ba}\left(\mathrm{NO}_{3}\right)_{2} \) will \( \mathrm{H}_{2} \mathrm{SO}_{4} \) is a double displacement reaction in which precipitate of \( \mathrm{BaSO}_{4} \) will be formed,
therefore, reaction will proceed in forward direction even for low concentration of sulphuric acid.
\( \mathrm{Ba}\left(\mathrm{NO}_{3}\right)_{2}+\mathrm{H}_{2} \mathrm{SO}_{4} \rightarrow \mathrm{BaSO}_{4}+2 \mathrm{HNO}_{3} \)
therefore, reaction will proceed in forward direction even for low concentration of sulphuric acid.
\( \mathrm{Ba}\left(\mathrm{NO}_{3}\right)_{2}+\mathrm{H}_{2} \mathrm{SO}_{4} \rightarrow \mathrm{BaSO}_{4}+2 \mathrm{HNO}_{3} \)
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