Oxides, bases (hydroxides) , acids, and salts.
The manual by S.V. Sofronov and R.P. Surovtseva is a classic educational resource published by Prosveshchenie . While it was originally released in 1993, its structured approach to testing fundamental chemistry concepts remains relevant for students and teachers alike. Understanding the Resource
Since direct solution keys for this specific 1993 edition are rare on mainstream GDZ websites, you can use these alternatives to verify your work:
Look for the "Teacher's Book" (Kniga dlya uchitelya) version, which contains the intended answers and grading scales.