Hey,

Both the streams are pretty good and will help you thrive in your life. Both of these require you to have a sharp mind in order to win the competitive atmosphere that the stream offer. It is believed that the hard work along with smart choices make one successful in life.

In almost every sector the demands m for computer application is increasing as more and more industry is shifting towards the use of CS /IT  to expand their own business.

So if you want a stable job after the completion of your course. I will suggest you to go for BSC IT /CS  . But if you are the type who are more into research and want to amke you career in that BSC physics/chemistry is good for you.

Now you decide what do you want. Both the courses are good and their demand is also different.

Hope that helps.

Thank you