A) \[{{C}_{6}}{{H}_{8}}{{N}_{2}}\]
B) \[{{C}_{7}}{{H}_{10}}N\]
C) \[{{C}_{5}}{{H}_{6}}{{N}_{3}}\]
D) \[{{C}_{4}}{{H}_{18}}{{N}_{3}}\]
Correct Answer: A
Solution :
| [a] Moles |
| \[\overset{C}{\mathop{\frac{9}{12}}}\,\overset{H}{\mathop{\frac{1}{1}}}\,\overset{N}{\mathop{\frac{3.5}{14}}}\,\,\,n=\frac{108}{54}=2\] |
| \[\frac{3}{4}\,\,\,\,\,\,\,:\,\,\,\,\,\,\,1\,\,\,\,\,\,\,:\,\,\,\,\,\frac{1}{4}\] |
| \[4\,\,\,\,\,\,\,:\,\,\,\,\,\,\,1\,\,\,\,\,\,\,:\,\,\,\,\,4\] |
| \[\Rightarrow {{C}_{3}}{{H}_{4}}N\Rightarrow M.F.={{({{C}_{3}}{{H}_{4}}N)}_{n}}\] |
| \[MF={{\left( {{C}_{3}}{{H}_{4}}N \right)}_{2}}={{C}_{6}}{{H}_{8}}{{N}_{2}}\] |
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