Why is synthesis of p-nitro acetanilide carried out at low temperature?

Answer 1

because if the temperature rises it will give o-nitroacetanilide too.

Answer 2

Synthesis of p-nitro acetanilide is carried out at low temperature to minimize side reactions and to control the rate of the nitration reaction. Low temperature helps to improve the selectivity of the reaction, favoring the desired product formation over potential byproducts.

Answer 3

to get rid of AC2o