why does the curdy white ppt of AgCl dissolve on addition of ammonia solution?

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Solution

The curdy white precipitate forms a soluble complex with ammonia.
$A g C l + 2 N {H_{3}}_{} \to [A g (N H_{3})_{2}]^{+} + C l^{-} D i a m m i n e s i l v e r (I) c o m p l e x$

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why does the curdy white ppt of AgCl dissolve on addition of ammonia solution?

The curdy white precipitate forms a soluble complex with ammonia. AgCl + 2NH3 → [Ag(NH3)2]+ + Cl- Diammine silver (I) complex

The curdy white precipitate forms a soluble complex with ammonia.
$A g C l + 2 N {H_{3}}_{} \to [A g (N H_{3})_{2}]^{+} + C l^{-} D i a m m i n e s i l v e r (I) c o m p l e x$