Dear friends, today in lecture, we shall discuss the following interesting facts of chemistry. These questions will be helpful for your tests of chemistry.
1- Why bulb filament is made up of tungston?
2- Why blotting paper absorbs ink?
3- Why does often glass crack due to hot water?
4- Why small space is left between two rails?
5- Why feather and stone fall at the same rate?
Have a nice day!