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Comprehension-22: (Q.73 to Q. 76)
White compound \( \stackrel{\mathrm{HCl}}{\longrightarrow} \) White ppt. \( \frac{\mathrm{Cl}_{2}}{\text { water }} \) Soluble compound
\( \mathrm{P} \)
(A)
(B)
(C)
W.
(i) \( \mathrm{FeSO}_{4} \)
(ii) conc. \( \mathrm{H}_{2} \mathrm{SO}_{4} \)
Brown ring
Compound \( (A) \) is:
(a) \( \mathrm{HgI}_{2} \)
(b) \( \mathrm{K}_{2} \mathrm{HgI}_{4} \)
(c) \( \mathrm{Hg}\left(\mathrm{NO}_{3}\right)_{2} \)
(d) \( \mathrm{Hg}_{2}\left(\mathrm{NO}_{3}\right)_{2} \)
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