What is weightage for control and coordinate lesson in 10th cbse science

Expected weightage of chapters for cbse class 10 science 2020:

Chapters	Weightage
Chemical Reactions and Equations	5 marks
Acids, Bases and Salts	3 marks
Metals and Non-Metals	7 marks
Carbon and its Compounds	5 marks
Periodic Classification of Elements	5 marks
Life Processes	7 marks
Control and Coordination	5 marks
How do Organisms Reproduce?	10 marks
Heredity and Evolution	1-3 marks
Light – Reflection and Refraction	7 marks
Human Eye and Colourful World	5 marks
Electricity	8 marks
Magnetic Effects of Electric Current	5 marks
Sources of Energy	1 marks
Our Environment	3 marks
Management of Natural Resources	3 marks