Sites like Uchportal provide downloadable test variants, though some might be adapted from other authors like Gabrielyan, so check the "Novoshinsky" tag before downloading.
Groups on VKontakte often share PDF collections of "Chemistry Control Works in New Formats" which align with the current 8th-grade requirements. Key Topics to Expect in the Assessment kontrolnaia rabota po novoshinskomu 8 klass skachat
Методическая разработка - КТП -8 химия УМК Новошинский И.И., Новошинская Н.С.: прочитать онлайн или скачать на сайте Инфоурок. Инфоурок kontrolnaia rabota po novoshinskomu 8 klass skachat
You can find digital versions of the 2013 Novoshinsky textbook , which often contains sample questions at the end of each chapter. kontrolnaia rabota po novoshinskomu 8 klass skachat