A) AgCl
B) AgBr
C) \[A{{g}_{2}}Cr{{O}_{4}}\]
D) All of these
Correct Answer: D
Solution :
| [a] AgCl dissolves completely forming\[[Ag\,{{(N{{H}_{3}})}_{2}}Cl\,\,;\] |
| \[AgCl+2N{{H}_{4}}OH\xrightarrow{{}}[Ag\,{{(N{{H}_{3}})}_{2}}]\,Cl+2{{H}_{2}}O.\] |
| [b] AgBr dissolves completely forming \[[Ag\,{{(N{{H}_{3}})}_{2}}]\,Br\] soluble complex, |
| \[AgBr+2N{{H}_{4}}OH\xrightarrow{{}}[Ag\,{{(N{{H}_{3}})}_{2}}]Br+2{{H}_{2}}O\,\] |
| [c] \[A{{g}_{2}}Cr{{O}_{4}}+4N{{H}_{3}}\xrightarrow{{}}2\,{{[Ag\,{{(N{{H}_{3}})}_{2}}]}^{+}}+CrO_{4}^{2-}\] |
| [d] Agl is insoluble in concentrated aqueous \[N{{H}_{3}}.\] |
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