Question 1 and 2
option b for 1st..
Yes correct but why can you explain
because it can donate lone pair easily
other compound - groups their lone pair have delocalised character..
What about question 2
Yes why ?
all have double bond character except d..
For 12th i am confused of amine compound and och3 subsituted group compound which is more stable
see electronegativity scale
less e.n will easily donate electrone +m effect more..
How +m mesomeric effect is only shown by aromatic compounds
where i wrote that +m shown by aromatic..
You wrote +m effect is there in amine part
yes +m shown by amine because of electrone donating tendency u r writing aromatic....
@abhijit_2020, I understood what you were asking. Mesomeric effect is not shown just in aromatic compounds it is also shown in aliphatic compounds.
3- more acidic because -m where in other -m is less because lp is in conjugation
Can you show how geomtrical isomerism is possible