A) \[{{K}_{2}}C{{r}_{2}}{{O}_{7}},Cr{{O}_{2}}C{{l}_{2}},A{{g}_{2}}Cr{{O}_{4}},{{[Ag{{(N{{H}_{3}})}_{2}}]}^{+}},\]\[AgCl,N{{H}_{4}}Cl\]and\[N{{H}_{3}}\]
B) \[{{K}_{2}}Cr{{O}_{4}},C{{l}_{2}},A{{g}_{2}}Cr{{O}_{4}},AgN{{O}_{3}},AgCl,N{{H}_{4}}Cl\]and\[N{{H}_{3}}\]
C) \[KMn{{O}_{4}},C{{l}_{2}},A{{g}_{2}}Cr{{O}_{4}},{{[Ag{{(N{{H}_{3}})}_{2}}]}^{+}},\]\[AgCl{{(N{{H}_{4}})}_{2}}S{{O}_{4}},\]and\[{{N}_{2}}\]
D) \[KMn{{O}_{4}},Cr{{O}_{2}}C{{l}_{2}},A{{g}_{2}}(Cr{{O}_{4}}),{{[Ag{{(N{{H}_{3}})}_{2}}]}^{+}},\]\[AgN{{O}_{3}},N{{H}_{4}}Cl\]and\[{{N}_{2}}\]
Correct Answer: A
Solution :
\[\underset{(A)}{\mathop{C{{r}_{2}}O_{7}^{2-}}}\,+6{{H}^{+}}+\underset{(P)}{\mathop{4N{{H}_{4}}Cl}}\,\xrightarrow[{}]{{}}\underset{(B)}{\mathop{2Cr{{O}_{2}}C{{l}_{2}}}}\,\]\[+4NH_{4}^{+}+3{{H}_{2}}O\] \[Cr{{O}_{2}}C{{l}_{2}}+2NaOH\xrightarrow[{}]{{}}N{{a}_{2}}Cr{{O}_{4}}+2HCl\]\[N{{a}_{2}}Cr{{O}_{4}}+2AgN{{O}_{3}}\xrightarrow[{}]{{}}\underset{(C)}{\mathop{A{{g}_{2}}}}\,Cr{{O}_{4}}+2NaN{{O}_{3}}\]\[A{{g}_{2}}Cr{{O}_{4}}+4N{{H}_{3}}\xrightarrow[{}]{{}}2{{[Ag{{(N{{H}_{3}})}_{2}}]}^{+}}+CrO_{4}^{2-}\]\[A{{g}_{2}}Cr{{O}_{4}}+2HCl\xrightarrow[{}]{{}}\underset{(X)}{\mathop{2AgCl}}\,\downarrow +2{{H}^{+}}+CrO_{4}^{2-}\]\[\underset{(P)}{\mathop{N{{H}_{4}}Cl}}\,+NaOH\xrightarrow[{}]{{}}\underset{(Q)}{\mathop{N{{H}_{3}}}}\,\uparrow +NaCl+{{H}_{2}}O\]You need to login to perform this action.
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