Leaving aside the fact that “killing” processes is not good and Chrome will not like it, and also that all Chrome processes will be killed, even those that are not open by a batch file, the task is doable and the following [rednecks] code implements it:
@echo off set CHROME_EXE=chrome.exe set CHROME="c:\Program Files (x86)\Google\Chrome\Application\%CHROME_EXE%" for /l %%i in (1,1,77) do ( call :five_sec "www.123.ru" call :five_sec "www.456.ru" ) goto :eof :five_sec start "" %CHROME% --incognito %1 timeout 5 taskkill /t /f /im %CHROME_EXE% > nul exit /b
PS But keep in mind that for such an approach in a decent society they are beaten on the head with a candelabrum, and without asking questions many times.