There are  5 available tests:

Index Chapter Test-name Number of Questions Durations
(in minutes)
Marks
(for each Correct Answer)
Negative Marks
(for One Wrong Answer)
1 atoms and molecules Test1 10 15 1 0
2 is matter around us pure Test2 10 10 1 0
3 matter in our surrounding Test3 10 10 1 0
4 structure of the atom Test4 10 10 1 0
5 structure of the atom Test5 10 10 1 0