Would 4-bromoacetanilide or 4-bromo-2-chloroacetanilide be more reactive toward electrophilic substitution? explain.

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4-Bromoacetanilide will be more reactive toward electrophilic substitution than 4-bromo-2-chloroacetanilide .

Explanation: -

Electrophilic substitution depends on the electron density of the aromatic ring. More the electron density, more is the reactivity.

Chloro is a electron withdrawing group. So it reduces the electron density of the aromatic benzene ring, thus decreasing the electron density.

Thus, 4-Bromoacetanilide will be more reactive toward electrophilic substitution than 4-bromo-2-chloroacetanilide.

the correct answer is b. a strong acid completely dissociates to its ions when dissolved in water. completely dissociates to and ions. a is incorrect because does not fully ionize to and ions and some remain as the compound . c and d are incorrect because, and do not fall into the category of bronsted lowry acids. a bronsted lowry acid is a proton donor and since both molecules do not have a proton to donate they are not bronsted lowry acids. likewise,   if we use the lewis acid definition, they cannot be acids. a lewis acid is an electron pair acceptor. both and have a complete octet so can not accept any electrons which disqualifies them as acids.