Q47. In Reimer - Tiemann reaction, phenol is converted into salicylaldehyde through an intermediate. The structure of intermediate is $\_\_\_\_$
(1)\\
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(2)\\
\includegraphics[alt={}]{smile-7a4a511f24adebe914782e3b4242963e48a5390e}
(3)\\
\includegraphics[alt={}]{smile-032368b880510144325c276722082244139c42b9}
(4)\\
\includegraphics[alt={}]{smile-8c7b800b9ad6659fe408d6374cc62b034def1ff1}