Question

please answer Q7 and Q8

Answer 1

7) First we dip litmus in 1st container if the color of litmus changes to red then it would be Hcl because strong acid changes litmus colour to red. If the color of litmus changes to orange then it would be a CH3COOH because it is a weak acid.


8) Reaction between BaCl2 and Na2SO4.

BaCl2 + Na2SO4 - - - - > BaSO4 + NaCl

If we wait for 10 minutes then there will be white precipitate formed by BaSO4 in container.


Thanks