Doubt from phenols

Question no 2 and 3

For 2nd is B and 3rd is C?

I think the same

Yes why

Qns2 Phenols cannot be dehydrated. In II C+is at allylic position and III is normal 2° alcohol
Qns3 as 3rd is also allylic position which further go resonance with benzene ring

Question no 12

Question no 16 too

Please help anyone with these questions

Phenol becomes sallicaldehyde cho =1+16+12

Ok what about last question

is it "B"


Its reimer tiemann reaction

Can you send detailed solution showing how it is formed

oh yes...


Thank you