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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Priyanshu kumar Best Answer
Para nitrophenol
Where you face difficulty in this??
-I effect No2 ka jyada hai CN se
methyl group +I hi dikhata hai
or ortho nitrophenol me H bonding hai
So para nitro phenol most acidic hai yha pe
order ho jayega 1>2>4>3
mereko ortho nitrophenol me doubt tha ki usme -I jyada lgega to jyada acidic hoga
nhi yha h bonding hoga to kam hoga but 4 cyano se jyada hoga
jyada diff nhi aata hai para nitrophenol se
mtlb h bonding se sirf uske jesa jo present hoga usse km hogi acidic strength aur bakiyo se jyada rhegi
yha pe distance factor bhi aa ja rha hai reshav...cyano grp 4 pe hai or no2 grp 2 pe
so no2 ortho me rhte hue bhi cyano se jyada hai .
yes clear mereko h bonding ka idea nhi ho ra tha
thanku so much
welcome reshav😊👍