Zechariah H. Chafee, Jr., Langdell Professor of Law and head of the United Nations subcommittee on Freedom of Information, lashed out Tuesday at Russian charges of American "imperialism." The action took place in a U.N. session at Lake Success.

Answering a speech by Jacob M. Lomakin, former Soviet writer, who charged the American and British press with "war-mongering," monopolistic practices, and promoting war with Russia, Professor Chafee labelled the 1930 "divide-Europe" agreement between the Soviet and Germany as "real imperialism."

Professor of law since 1919, Chafee held the Langdell chair for ten years. He is the author of numerous legal reports and treatises.

'Real Imperialism'

In his reply to Lomakin, Chafee deplored repeated Russian accusations of American "imperialism" and asked, "Does it not constitute real imperialism to agree to kill a nation?" In addition to misrepresenting the United States, Soviet publications have repeatedly indulged in name-calling he said.

He cited statements from several Soviet newspapers, calling Walter Lippmann "a faithful servant of monopolistic circles" and Brooks Atkinson, New York Times drama critic, "a mercenary bandit, not fit to whip ... a product of the Stock Exchange and the black markets."