MCQ
Which will undergo a Friedel-Craft's alkylation reaction


- A$1, 2$ and $4$
- B$1$ and $3$
- ✓$2$ and $4$
- D$1$ and $2$


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$CoCl _{3} . xNH _{3}+ AgNO _{3}( aq ) \rightarrow$
If two equivalents of $AgCl$ precipitate out, then the value of $x$ will be $....$
[where $Et$ is $- C _{2} H _{5}$ ]
Compound $'A'$