45. the decreasing order of the acidity of compounds i-iv is ph oh ph oh ph oh aj 1>l> [il>iv b 1>1>iv>1 [c] iim>}v>1>ii| d

option D sp hybridised carbon are most electronegative. +I effect decreases the acidity of carboxylic acid and -I effect increases the acidity. More is the electronegativity more...

option B Explanation- in case of I and II, there is only +I effect. while in case of III and IV there is +R effect of pi bond. if we talk about I and II, I has more +I effect tha...