Here are the most common resources for finding these solutions:

Qualitative reactions, such as identifying aldehydes using copper(II) hydroxide. Where to Find Solutions

A classic choice where reshebniks typically break down the content by paragraph to help with homework and control work prep.

10 класс (профильный уровень) (УМК Кузнецовой Н.Е.)

Common for schools with a more in-depth approach to organic chemistry. Key Topics Covered

Platforms such as 100ballnik frequently post "entry-level" diagnostic tests and year-end control work variants with answers.

Sites like Infourok often host combined control works and methodological developments for various textbook authors.