White compound \( \stackrel{\mathrm{HCl}}{\longrightarrow} \) (A) (B) (B) \( \underset{\text { W...

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White compound \( \stackrel{\mathrm{HCl}}{\longrightarrow} \)
(A)
(B) (B) \( \underset{\text { Water }}{\longrightarrow} \)
(B)
Soluble compound
(D)
(F)
(Used for detecting \( \mathrm{NH}_{4}^{+} \)ions)
White ppt. (B) \( +\left(\mathrm{NH}_{3} \longrightarrow\right. \) Black ppt. \( (\mathrm{H}) \). Hence, \( (\mathrm{H}) \) is in basic medium due to the formation of:
(a) \( \mathrm{Hg}\left(\mathrm{NH}_{2}\right) \mathrm{CI} \)
(b) \( \mathrm{Hg} \)
(c) \( \mathrm{Hg}\left(\mathrm{NH}_{2}\right) \mathrm{Cl}+\mathrm{Hg} \)
(d) \( \mathrm{Hg}\left(\mathrm{NH}_{2}\right)_{2} \)
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