Ncert class 10 - science - chapter 3 - metals and non-metals How do organisms reproduce Ncert class 10 - science - chapter 7 - control and coordination Ncert class 10 - science - chapter 6 -l ife processes Ncert class 10 - science - chapter 2 - acids, bases and salts Ncert class 10 - science - chapter 1 - chemical reactions and equations 
