Kavya, the reaction occurring is as follows:-

Na2SO4+BaCl2---------> BaSO4+2NaCl

Here, 1 mol of Na2SO4 reacts with with 1 mol of BaCl2 to give 1 mol of BaSO4

Also, Molar mass of Na2SO4= 142 g/mol

Molar mass of BaSO4= 233.3 g/mol

Molar mass of BaCl2= 208.3 g/mol

Now, in BaSO4, no

Dear Aspirant

you can  score 80 above in class 12 th .If you wish to then you have to do extreme hard work and devote 6-7 hrs consistenly to score better marks

you have to start studying from today because by praticing and doing hard work you will get the

Hello Shrishti,

Hope you are doing well, the tentative dates announced on the official website has passed away, so I think it's time to visit the site regularly as the dates might be in the second week of September. Keep patience and wait for the best.

https://bceceboard.bihar.gov.in/

Good luck!!!