Question

dash + HCL gives BaSO4 + NACL​

Answer 1

During the reaction of BaCl₂ with Na₂SO₄, HCl is added to the reaction mixture.

So the correct equation is

BaCl₂ + Na2SO4 +HCL gives BaSO4 + NACL.

Answer 2

hiii dear .. in presence of hcl. that reaction happen .

bacl2+na2so4=baso4 +2nacl .. thxx