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Which of the following reactions are correct?
(i) \( \sum_{\mathrm{H}}^{\mathrm{H}} \mathrm{Cl}+2 \mathrm{NH}_{3} \longrightarrow \mathrm{SH}_{2}+\mathrm{NH}_{4} \mathrm{Cl} \)
\( \mathrm{P} \)
(ii) \( \longrightarrow \mathrm{Cl} \stackrel{\text { aq. } \mathrm{KOH}}{\longrightarrow} \)
(iii)
(ii)
(iv) \( \mathrm{NH}_{2}+\mathrm{HNO}_{2} \stackrel{\mathrm{O}^{\circ} \mathrm{C}}{\longrightarrow} \gg \mathrm{OH} \)
W
\( \lambda \mathrm{Cl} \stackrel{\text { aq. кен }}{\longrightarrow} \longrightarrow \)
(i)
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