Halogen atom present in benzene ring is ortho, para directing, but deactivating. Why?

The ortho and para directing groups are

An alkoxy group connected to benzene ring is ortho- and para-orienting. Explain.

Which of the following substituent in the benzene is deactivating but o,p-directing ?

Which of the following group is meta directing and ring deactivating

Amino group in anilines it ortho and para directing. But on nitration, aniline gives an appreciable amount of m-nitroaniline alos. Explain.

Reaction of benzene with a mixture of conc. HNO_(3) and Conc H_(2)SO_(4) at about 60^(@)C give nitrobenzene. Nitration of substituted benzenes depends on the nature of the group already present in the ring. Increase of temperature may result in multiple nitration. Which of the following compounds undergo nitration at a rate faster than the other

Reaction of benzene with a mixture of conc. HNO_(3) and Conc H_(2)SO_(4) at about 60^(@)C give nitrobenzene. Nitration of substituted benzenes depends on the nature of the group already present in the ring. Increase of temperature may result in multiple nitration.

Although chlorine is an electron withdrawing group , yet it is ortho-, para-directing in electrophilic aromatic substitution reactions . Why ?

Assertion (A)k NH, group of aniline is ortho, para directing in electrophilic substitutions. Reason (R) NH, group stabilises the arenium ion formed by the ortho, para attack of the electrophile. The carrect answer is